Best way to powerdown Allo player

Hello,

I just installed an Allo Digione signature player with Picoreplayer. (And upgrade my first system with that soft too : Rpi4 + Hiffiberry Dac + Pro XLR).

The main player (RPi3B+ with Allo DOS) is server (LMS) and player (Squeezelite). The PSU for this unit is the double power Shanti by Allo.

With PcP is V6.1.0, I see there is no problem to shut down Squeezelite directly, but it seem dangerous to power down LMS.

How do you shutdown the Allo digione signature player ?

Thans for your help
Franck