I was able to program our 5 shades to close (lower) and raise (open) our shades. Worked fine when pressing command on phone - but - verbal commands wouldn't work properly. I discovered on the Google Home app there is an option to set up "routines". I set a "one action" routine for each shade. When I say "Hey Google,Lower shade one" - the action is "Close Somfy Shade 1".
I created 2 groups of shades so that one command can control multiple shades,
“Hey Google, Lower shades group 1”
Actions taken are:
“Close Somfy shades 1”
“Close Somfy shades 2”
“Close Somfy shades 3”