Ok, here's another idea I had. Since we can't always avoid right-click menus, what if we could write our own VIs, and place them in a special location on disk, and those VIs would become right-click menu options for objects in the LabVIEW editor? I'm not talking about run-time menus here, I'm basically talking about adding features to the editor. I'm also not talking about XControls...I want to be able to define new editor operations for native LabVIEW controls. There could be a folder on disk like [LabVIEW]\resource\MenuPlugins\String. Any VI in this folder would be presented as a new right-click menu option whenever a string (and by inheritance, a ComboBox) control/indicator is right-clicked on the front panel. If you pick this menu option, the VI executes. It takes in a VI Server reference of type String, and then you can perform whatever operations you want on the String. Perhaps the VI could take an array of references so the right-click operation could be performed when multiple controls are selected.
And with scripting, we could do the same thing with block diagram objects. For example, one diagram operation I always find tedious is when I need to delete a node from the diagram that had several pass-through wires (error in, error out, reference in, reference out), I always have to manually wire up the pass through wires once the node is deleted. I could write a plug-in VI for the Node class of the diagram that adds a "Delete and Rewire" menu option that will delete the object, then automatically create those wires for me.
Edit: Here's another example. Just today I was working on a UI and really loving the "Delete All Items" right-click menu option on Tree Controls, and being annoyed that the same option isn't available for Multicolumn Listboxes. With my plug-in menu VI idea, I could have just written the functionality for the menu option myself!