Yes, it is possible. Install the console on their desktop. On the server,
add them (or a group they belong to) to the local group SMS Admins, and via
Security Rights you grant them (or a group they belong to) to the class(es)
or specific instances you want them to have access to.
Depending upon local firewall on the desktop, or settings on the server, you
may need to troubleshoot / adjust settings if you find that the console
If you are just looking to give the helpdesk remote control abilities, there
are other tools available instead of the console (just thought I'd throw that
Standarize. Simplify. Automate.