
The Bar1 value is already special in that it is used for Cards, and assumed to be the "Hit Point" total for most systems. Right now to edit it you need to click the green value bubble before you can help. If you're using it for a lot of cards or editing the HP value on a lot of tokens, a keyboard shortcut would be helpful. I would recommend F2 as the keyboard shortcut. This is the standard shortcut for editing or renaming an item.