I’d seriously consider only using BT with the Harmony Hub and your Vero… It’s way more responsive than IR!
A basic guide as to how this is set up can be found here: Configure Harmony Elite + Hub with Vero 4k/Kodi - #24 by Nickelig
The OSMC remote that comes with the Vero is not a BT remote, but RF. It can be used side by side with any other BT or IR remote