How to easily edit numerical variable value for width or height from the sidebar without having to open the full variables manager

I’m using variables to control with width of table columns and I can’t seem to find a way to easily edit this value from the sidebar. Is there any way to do this without having to escape the frame and open up the variables manager and then hunt for the variable I want to edit?

I would have thought I could click on this variable and there would be some way to then edit it?