in a community situation would it be fine to keep one crib with keyhole ciclids

I would advise against this to be honest.
It may work if theres lots of room in the tank, but they're very different species and mixing them could be pushing your luck.

kk will ime torn between the key holes and cribs whats the copatability of key holes with a palm sized angel a friend needs it re homing as its eaten all his neons and is not happy told him but well he wouldn't listen

Keyholes and angels should be fine, as long as you have lots of tall and broad leaved plants, its the krib that will cause trouble housed with SA cichlids. Thats generally of course, youll always get the odd hyperaggressive cichlid.

kk thanks so its gonna be one 9cm angel and 2 key hole ciclids
and plenty of amazon swords then and tall valise