Ah. I guess that would be for something like using it to play from a widget on the home screen without having to map it that way?
Long-press is great but it can be a bit tricky at times. This is what we are using currently in OSMC which you could use as well with a bit of modification to make it match up with your current button layout. More information on it can be found [here].
Current OSMC custom keymap
<?xml version="1.0" encoding="UTF-8"?>
<!-- The second and third generation OSMC remotes use i and c keys that stop functioning with some keyboard languages in OSMC. -->
<!-- We have remapped those keys in OSMC to kpleftparen and kprightparen with udev to overcome this issue. This file maps those keys to -->
<!-- Kodi actions and adds tweaks to provide enhanced function. Home was remapped in v1&2 for consistency. The buttons map in Kodi as... -->
<!-- -->
<!-- OSMC with udev remap non-OSMCv1 non-OSMCv2 non-OSMCv3 -->
<!-- Home = escape <key id="61467"> Home = home Home = home Home = escape -->
<!-- Info = leftbracket <key id="61480"> Info = Info = i Info = i -->
<!-- Up = up <key id="61568"> Up = up Up = up Up = up -->
<!-- Down = down <key id="61569"> Down = down Down = down Down = down -->
<!-- Left = left <key id="61570"> Left = left Left = left Left = left -->
<!-- Right = right <key id="61571"> Right = right Right = right Right = right -->
<!-- OK = return <key id="61453"> OK = return OK = return OK = return -->
<!-- Back = browser_back <key id="61616"> Back = browser_back Back = browser_back Back = browser_back -->
<!-- Menu = rightbracket <key id="61481"> Menu = Menu = c Menu = c -->
<!-- Play = play_pause <key id="61629"> Play = play_pause Play = play_pause Play = play_pause -->
<!-- Stop = stop <key id="61628"> Stop = stop Stop = stop Stop = stop -->
<!-- Vol- = volume_down <key id="61624"> RW = rewind Vol- = minus Vol- = minus -->
<!-- Vol+ = volume_up <key id="61625"> FF = fastforward Vol+ = equals Vol+ = equals -->
<!-- -->
<!-- Keymap created by DarwinDesign version 20-04-01 -->
<!-- -->
<keymap>
<global>
<keyboard>
<escape>PreviousMenu</escape>
<home>PreviousMenu</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
<leftbracket>Info</leftbracket>
<i>Info</i>
<leftbracket mod="longpress">noop</leftbracket> <!-- stops cycling -->
<i mod="longpress">noop</i> <!-- stops cycling -->
<left>Left</left>
<right>Right</right>
<up>Up</up>
<down>Down</down>
<return>Select</return>
<return mod="longpress">noop</return> <!-- removes default context menu & stops cycling -->
<browser_back>Back</browser_back>
<rightbracket>ContextMenu</rightbracket>
<c>ContextMenu</c>
<rightbracket mod="longpress">Menu</rightbracket>
<c mod="longpress">Menu</c>
<play_pause>PlayPause</play_pause>
<play_pause mod="longpress">noop</play_pause> <!-- removes default info & stops cycling -->
<stop>Stop</stop>
<volume_down>VolumeDown</volume_down>
<volume_up>VolumeUp</volume_up>
<f2>Notification(OSMC Remote Controller, Low Battery Please Replace,5000)</f2>
</keyboard>
</global>
<Home>
<keyboard>
<escape>CECActivateSource</escape>
<home>CECActivateSource</home>
<escape mod="longpress">CECStandby</escape>
<home mod="longpress">CECStandby</home>
<leftbracket>info</leftbracket>
<i>info</i>
<browser_back mod="longpress">ActivateWindow(ShutdownMenu)</browser_back>
<return mod="longpress">ReloadSkin()</return>
<play_pause mod="longpress">UpdateLibrary(video)</play_pause>
</keyboard>
</Home>
<VirtualKeyboard>
<keyboard>
<rightbracket mod="longpress">noop</rightbracket>
<c mod="longpress">noop</c>
<up mod="longpress">Shift</up>
<down mod="longpress">Symbols</down>
<return mod="longpress">Enter</return>
</keyboard>
</VirtualKeyboard>
<FileManager>
<keyboard>
<right mod="longpress">Highlight</right>
<left mod="longpress">Highlight</left>
</keyboard>
</FileManager>
<FullscreenVideo>
<keyboard>
<escape>ActivateWindow(videobookmarks)</escape>
<home>ActivateWindow(videobookmarks)</home>
<escape mod="longpress">playerdebug</escape>
<home mod="longpress">playerdebug</home>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<return mod="longpress">Playlist</return>
<up mod="longpress">SkipNext</up>
<down mod="longpress">SkipPrevious</down>
<left mod="longpress">AudioDelay</left>
<right mod="longpress">subtitledelay</right>
<rightbracket>ActivateWindow(osdvideosettings)</rightbracket>
<c>ActivateWindow(osdvideosettings)</c>
<rightbracket mod="longpress">ActivateWindow(osdaudiosettings)</rightbracket>
<c mod="longpress">ActivateWindow(osdaudiosettings)</c>
<play_pause mod="longpress">showsubtitles</play_pause>
<stop mod="longpress">ActivateWindow(osdsubtitlesettings)</stop>
</keyboard>
</FullscreenVideo>
<FullscreenGame>
<keyboard>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<rightbracket>OSD</rightbracket>
<c>OSD</c>
</keyboard>
</FullscreenGame>
<FullscreenInfo>
<keyboard>
<leftbracket>Back</leftbracket>
<i>Back</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<rightbracket>Back</rightbracket>
<c>Back</c>
</keyboard>
</FullscreenInfo>
<Visualisation>
<keyboard>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
<return mod="longpress">ActivateWindow(MusicPlaylist)</return>
<rightbracket>Addon.Default.OpenSettings(xbmc.player.musicviz)</rightbracket>
<c>Addon.Default.OpenSettings(xbmc.player.musicviz)</c>
<rightbracket mod="longpress">ActivateWindow(VisualisationPresetList)</rightbracket>
<c mod="longpress">ActivateWindow(VisualisationPresetList)</c>
</keyboard>
</Visualisation>
<MusicOSD>
<keyboard>
<escape>back</escape>
<home>back</home>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<return mod="longpress">back</return>
<rightbracket>Addon.Default.OpenSettings(xbmc.player.musicviz)</rightbracket>
<c>Addon.Default.OpenSettings(xbmc.player.musicviz)</c>
<rightbracket mod="longpress">ActivateWindow(VisualisationPresetList)</rightbracket>
<c mod="longpress">ActivateWindow(VisualisationPresetList)</c>
</keyboard>
</MusicOSD>
<VisualisationPresetList>
<keyboard>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<rightbracket>back</rightbracket>
<c>back</c>
</keyboard>
</VisualisationPresetList>
<slideshow>
<keyboard>
<escape>back</escape>
<home>back</home>
<leftbracket>info</leftbracket>
<i>info</i>
<play_pause>pause</play_pause>
<up mod="longpress">ZoomIn</up>
<down mod="longpress">ZoomOut</down>
<return mod="longpress">ZoomNormal</return>
<rightbracket></rightbracket> <!-- removes mapping from osmc-classic -->
</keyboard>
</slideshow>
<VideoOSD>
<keyboard>
<escape>ActivateWindow(videobookmarks)</escape>
<home>ActivateWindow(videobookmarks)</home>
<escape mod="longpress">playerdebug</escape>
<home mod="longpress">playerdebug</home>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<up mod="longpress">SkipNext</up>
<down mod="longpress">SkipPrevious</down>
<left mod="longpress">AudioDelay</left>
<right mod="longpress">subtitledelay</right>
<rightbracket>ActivateWindow(osdvideosettings)</rightbracket>
<return mod="longpress">back</return>
<c>ActivateWindow(osdvideosettings)</c>
<rightbracket mod="longpress">ActivateWindow(osdaudiosettings)</rightbracket>
<c mod="longpress">ActivateWindow(osdaudiosettings)</c>
<play_pause mod="longpress">showsubtitles</play_pause>
<stop mod="longpress">ActivateWindow(osdsubtitlesettings)</stop>
</keyboard>
</VideoOSD>
<VideoMenu>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<rightbracket></rightbracket> <!-- removes mapping from osmc-classic -->
</keyboard>
</VideoMenu>
<OSDVideoSettings>
<keyboard>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<rightbracket>back</rightbracket>
<c>back</c>
<stop>back</stop>
</keyboard>
</OSDVideoSettings>
<OSDAudioSettings>
<keyboard>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<rightbracket>back</rightbracket>
<c>back</c>
<stop>back</stop>
</keyboard>
</OSDAudioSettings>
<osdsubtitlesettings>
<keyboard>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<rightbracket>back</rightbracket>
<c>back</c>
<stop>back</stop>
</keyboard>
</osdsubtitlesettings>
<VideoBookmarks>
<keyboard>
<escape>back</escape>
<home>back</home>
<rightbracket mod="longpress">back</rightbracket>
<c mod="longpress">back</c>
</keyboard>
</VideoBookmarks>
<Videos>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
<return mod="longpress">SendClick(14)</return> <!-- Toggle view between unwatched and all videos -->
<play_pause mod="longpress">togglewatched</play_pause>
</keyboard>
</Videos>
<VideoPlaylist>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
<return mod="longpress">Back</return>
</keyboard>
</VideoPlaylist>
<ContextMenu>
<keyboard>
<rightbracket>Back</rightbracket>
<c>Back</c>
</keyboard>
</ContextMenu>
<MusicInformation>
<keyboard>
<escape>back</escape>
<home>back</home>
<leftbracket>Back</leftbracket>
<i>Back</i>
<leftbracket mod="longpress">noop</leftbracket> <!-- stops cycling -->
<i mod="longpress">noop</i> <!-- stops cycling -->
<rightbracket>Back</rightbracket>
<c>Back</c>
</keyboard>
</MusicInformation>
<MusicPlaylist>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
<return mod="longpress">back</return>
</keyboard>
</MusicPlaylist>
<SongInformation>
<keyboard>
<escape>back</escape>
<home>back</home>
<leftbracket>Back</leftbracket>
<i>Back</i>
<leftbracket mod="longpress">noop</leftbracket> <!-- stops cycling -->
<i mod="longpress">noop</i> <!-- stops cycling -->
<rightbracket>Back</rightbracket>
<c>Back</c>
</keyboard>
</SongInformation>
<MovieInformation>
<keyboard>
<escape>back</escape>
<home>back</home>
<leftbracket>Back</leftbracket>
<i>Back</i>
<leftbracket mod="longpress">noop</leftbracket> <!-- stops cycling -->
<i mod="longpress">noop</i> <!-- stops cycling -->
<rightbracket>Back</rightbracket>
<c>Back</c>
</keyboard>
</MovieInformation>
<PictureInfo>
<keyboard>
<escape>back</escape>
<home>back</home>
<leftbracket>Back</leftbracket>
<i>Back</i>
<leftbracket mod="longpress">noop</leftbracket> <!-- stops cycling -->
<i mod="longpress">noop</i> <!-- stops cycling -->
<rightbracket>Back</rightbracket>
<c>Back</c>
</keyboard>
</PictureInfo>
<FullscreenLiveTV>
<keyboard>
<rightbracket>ActivateWindow(PVROSDChannels)</rightbracket>
<c>ActivateWindow(PVROSDChannels)</c>
<leftbracket>info</leftbracket>
<i>info</i>
<leftbracket mod="longpress">playerprocessinfo</leftbracket>
<i mod="longpress">playerprocessinfo</i>
<left mod="longpress">AudioDelay</left>
<right mod="longpress">subtitledelay</right>
<return mod="longpress">Record</return>
<play_pause mod="longpress">showsubtitles</play_pause>
<stop mod="longpress">ActivateWindow(Teletext)</stop>
</keyboard>
</FullscreenLiveTV>
<TVGuide>
<keyboard>
<return mod="longpress">Record</return>
</keyboard>
</TVGuide>
<FullscreenRadio>
<keyboard>
<rightbracket>ActivateWindow(PVROSDChannels)</rightbracket>
<c>ActivateWindow(PVROSDChannels)</c>
</keyboard>
</FullscreenRadio>
<AddonInformation>
<keyboard>
<escape>back</escape>
<home>back</home>
<leftbracket>Back</leftbracket>
<i>Back</i>
<leftbracket mod="longpress">noop</leftbracket> <!-- stops cycling -->
<i mod="longpress">noop</i> <!-- stops cycling -->
<rightbracket>Back</rightbracket>
<c>Back</c>
</keyboard>
</AddonInformation>
<PlayerProcessInfo>
<keyboard>
<leftbracket>back</leftbracket>
<i>back</i>
<rightbracket>ActivateWindow(osdvideosettings)</rightbracket>
<c>ActivateWindow(osdvideosettings)</c>
<rightbracket mod="longpress">noop</rightbracket>
<c mod="longpress">noop</c>
<stop mod="longpress">ActivateWindow(osdsubtitlesettings)</stop>
</keyboard>
</PlayerProcessInfo>
<yesnodialog> <!-- Added to allow CEC when update dialog box appears -->
<keyboard>
<escape>CECActivateSource</escape>
<home>CECActivateSource</home>
<escape mod="longpress">CECStandby</escape>
<home mod="longpress">CECStandby</home>
</keyboard>
</yesnodialog>
<selectdialog>
<keyboard>
<escape>back</escape>
<home>back</home>
</keyboard>
</selectdialog>
<contextmenu>
<keyboard>
<escape>back</escape>
<home>back</home>
</keyboard>
</contextmenu>
<addonsettings>
<keyboard>
<escape>back</escape>
<home>back</home>
</keyboard>
</addonsettings>
<addonbrowser>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</addonbrowser>
<filemanager>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</filemanager>
<interfacesettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</interfacesettings>
<systeminfo>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</systeminfo>
<eventlog>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</eventlog>
<playersettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</playersettings>
<mediasettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</mediasettings>
<pvrsettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</pvrsettings>
<servicesettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</servicesettings>
<gamesettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</gamesettings>
<profiles>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</profiles>
<systemsettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</systemsettings>
<music>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</music>
<pictures>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</pictures>
<skinsettings>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</skinsettings>
<musicplaylisteditor>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</musicplaylisteditor>
<games>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</games>
<programs>
<keyboard>
<escape>ActivateWindow(Home)</escape>
<home>ActivateWindow(Home)</home>
<escape mod="longpress">fullscreen</escape>
<home mod="longpress">fullscreen</home>
</keyboard>
</programs>
</keymap>