Allowing 2 accounts to access same computer

I use LogMeIn Central to access clients' computers for accounting.  I have several clients that I am unable to support in this way because their IT consultant has already setup LogMeIn to support their IT needs. 

I confirmed with support that there is no work around for this.  For one client that had their own account for the owner to access remotely, I was able to have him add me as a user.

Has anyone else had this issue?

I would love to see this added as a feature!  Even to be able to use the Ad Hoc Support feature would be great.

Thanks.