How to select resolve context

my environment is a remote dev :

clion on Win10 

building on rhel6/gcc446 and rhel7/gcc531.

both remote hosts properly configured (e.g. l6 and l7 respectively) and used for the deployment and debugging.

Clion performed headers caching from both ones to separated folders , all looks correct

however "Available resolve context" in the editor , there is only tw options:

Debug-l6 and Release-l6,

nothing about l7 host there, probably this is a reason why some headers resolved incorrectly by clangd code model...

I'd like to understand is it possible to configure? how to add host's includes cache into available resolve contexts? 

looks like max possible number of the context is 4 only