Screens work good together with google home.
I have connexoon io and all iomotors (since velux is also io and i only wanted 1 system/hub) i can ask to open/close every screen by itself. If i add x% it opens/closes that amount of the screen(IO only i guess). And if i say a open/close livingroom it works on all windows in my livingroom.( i made a new room under my livingroom so i can also voicecontrol the entire southside at once without the other screens reaction).
The only error i have is when i say open/close everything. Then it says there is a problem with 19 devices(all my motors). However some screens react immediatly, some after 2 minutes and some ignore it. Always different combinations. I made a routine in google home to activate a flow in homey that opens/closes all (one of my 4 scenarios in connexoon)to avoid this. You can force connexoon to have more scenarios also(found out by accident that if the homeyapp is connected and you save your scenarios they are saved to homey. If you change your username in the connexoonapp you can save 4 different scenarios. Homey remembers all 8. Change username again and you have 12 scenarios…