Not sure if i'm too late, but I ended up finding a solution. Here's my code:
Run,"C:\Program Files (x86)\steam\steam.exe" -applaunch 1147940 -id=%1%
Process, Wait, 3dSenVR.exe
Process, WaitClose, 3dSenVR.exe
ExitApp
Esc::
Process, Close, 3dSenVR.exe
Process, Close, vrmonitor.exe
ExitApp
Return