I'm not sure if such request already exists, please delete (or merge) the topic if it's duplicated.
I believe, that it would be very handy to have an edit panel opened by double click on a tag in Tag Inspector panel.
Currently, if one click on a tag value (data), the field becomes editable and this is fine for regular tags.
However, if the tag data are a bit bigger (then the length of the field) such as CUESHEET, editing is really difficult.
I usually copy the content in external editor and than paste it back, but I would prefer to do the job without additional applications/steps.
So, could you update the Tag Inspector with such feature, opening an edit panel by double-click on the tag name/key field?