Make sure the import menu button is active in the right situation.
Currently it is active when the import node or a child of the import node is selected. When a 2d child is selected (e.g. a taskdata node under import/isobus) the button is disabled. That's not correct.
In the best case the button is enable when there is a farm opened in the explorer.
Next best thing is that it is active when the import node or any of it's offspring is selected.