Configmgr Cloud management gateway remote user support

I am installing a cloud management gateway for a customer. the main apps for the users are office 365 apps and the thing we are missing eh most is remote control to be able to assiti the users if they need help.

the cloud managment gateway does not support "remote tools" which to me means remote control.

how about remote assistance? would that work since its client initiated? and if not, how can i support the users off network?