Pi3 with hifiberry - use internal soundcard for other program

Hey guys,
i have a hifiberry digi+ installed on my pi and it works great via spdif out.
But now i want to use the onboard headphone jack for another program, but it seems osmc is hogging it somehow.
Changing the output to pi:analog in the gui would work as expected, and i already set it not to reserve the audio devices.
So can i exclude the internal soundcard from osmc so i can use it for something else?

Thanks a lot in advance,

Sorry for bumping this, but should i specify my question somehow or provide some additional information?
Or is it just that it cant he done?