Global tenant disable for one role..!

Hello Everyone,

Can some one answer for below questions:

I have created two roles with name RoleA, RoleB…(Elastic search version - 7.1)

Question 1: I want to map Global tenant for RoleA only , will that be possible?

Question 2: Is it possible to disable Global tenant for all roles via rest api call with using dev tools, if yes please share the sample request body to do this task.

your help highly appreciated …!