Unfortunately that's beyond my capability, else I would have done it. I'd just like to know what was going in the mind of the person who decided to name an empty box "wxTreeCtrl". I just want to verify; the two are interchangeable in the current state am I right? What discrepancy exists between an empty white box and "wxTreeCtrl"?
As a hopefully final word, this is beyond inane. You can say I'm ignorant, but if the developers are competent enough to make a working dialog specifically for editing menu items, how hard is it to design a very similar one for wxTreeCtrl? Now I'm off to learn how to implement this GUI-specific attribute in code, which is totally counter-productive in relation to what could/should have been.