Hi,
I think cold be really helpful to have some sort of Sheet Level access configurable from the Qlik Sense application itself like it can be achieved on Qlikview, instead of going to QMC and configure it.
The reason for this possibility, is that in some places the governance of the server is done by one team and the developing part is done by other and in order to have some sheet level access you need to raise a request to the Server team and wait for their SLA to get it set.
Thanks