if the selection mode is other than 'mouse selection' when the 'edit' tool is selected,
then the 'mouse selection' mode should be turned on.
This occurs when the current selection mode is 'dragging'
It does not when the current selection mode is 'rectangle selection'
If the issue is that there are times when the 'edit tool' is usable with 'rectangle selection' then a cue/info is needed as to how or what would make it work. Otherwise it just seems broken, as now, until the mouse is selected.
NB I am on Gephi 8.1 as 8.2 doesn't work on Mac. Perhaps already fixed.