Have you tried creating a Specific task for the Open Objects General task and the object(s) in question? If you select "run before" you can execute the parent actions (so the box is still opened) but display your own description instead of the default.
I haven't made any tasks, but was thinking in terms of the default behavior. Since doors are not required to have tasks to function, I was thinking in terms of **user-friendliness** by allowing a simple replacement of the default text right where you make the selection for the object to be opened/closed/locked. A text override would probably work, but having to take an additional step seems to make it a little bit less user friendly.