Changing User in Calypso 7.0

[[Da...]]

Should be obvious, but I seem to not be able to find how to change users from the USER mode to MASTER in Calypso 7.0.
I recently updated our software to 7.0 from 6.8. The normal 2 methods (Extras-> User-> Change User, or on Run screen-> User info->Change User drop down) are not available while in the paired down version of Calypso for operator level. The only other way I can think of is to close Calypso window down and then change it at the start up screen.
Any ideas how to quickly change between the two?

Thank you

[[Ji...]]

There is a small box above the user name to click to change. I don't care for this change but it is what we have.