Keyboard method to edit variables in FM9/10?

Greetings--

Every now and then I find myself having to change the content of many variables in a short period of time. I've never been able to find a way to do this without resorting to the mouse.

Is there a trick I'm missing?

We're currently using FM9, with FM10 on order in P.O. limbo.  Some of our group is on XP; some is on Windows 7.

Thank you,

MaryHS