Switch Fire Groups? Not working?

I did my fire groups on the right panel and read from searching the forum that to change groups tap "A" but that does nothing, and see no options when I hold a, please help lol. My adder would really appreciate more then 1 working fire group lol.
 
I did my fire groups on the right panel and read from searching the forum that to change groups tap "A" but that does nothing, and see no options when I hold a, please help lol. My adder would really appreciate more then 1 working fire group lol.
Also make sure you've actually set fire groups on the right screen. The default doesn't seem to allocate them.
 
Tapping A works fine for me.
Are you guys prompted to add a new fire group if you add a new item that requires a fire group like a Cargo Scanner?
OP might want to put this in the bug section.
 
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