Help with multiroom 6 devices

Hi All

At this moment I am using volumio and roon for my 6 rooms for music but now that
I have volumio version 3.416, I just like to use volumio for this
but need help with this please

in Volumio right have bottom corner there is
play here/grouping/cast/switch
so in grouping there is only 1 source switch has 3 source

should be 6 in 1 of there ie grouping

so there must be settings that I have to change or add to or same thing

my main raspberry pi is Volumio V3 the other 5 are V2

so any help will be gratefully

Thank you

you need volumio3 for all your devices to use multi-room, volumio2 does not have this feature

Hi Darmur
[/you need volumio3 for all your devices to use multi-room, volumio2 does not have this feature]

Thank you for this info, I am in the process of doing that now.