Air Manager: where are all the other "community" panels?

OK but if on the lef there is instrument and pannel made on github and on th right, the airmanager software but. how to import the instrument in the software?
I had save some file n github but the soft when i try to import don’t know them and.
OK is there 2300333333 different instrument in the software but after the cesna 172 and 6 instruments for the c 152. no one is for one on my 192 plane i have in my MSFS !!!
and i’m talking about infividual instruments.
for a panel i mst buy the only one 172 i had find on there website.
No 320, no 737 nothing complete att all.
In fact this stuff is a soft for developer thank be able to start from scratch without any manual or nothing else.
So i had buy, the soft, one panel for the 172 and that all folk.
I was ready to buy a plane bombardier becaus there is on pannel for it in the gitub but when i try to import the *.siff files in airmanager, it don’t take them so…
WOW!