Yes, I have been through documentation and examples. My apologies for missing this one.
Every mistake must be a source of improvement and innovation.
In many cases, I'm trying not only to answer the questions but also stimulate improvement on all U++ fronts and ... even have some fun.
Don't take seriously...
After I had written so many critical words in the forums about theide F1 and search, and some well-known people have been putting so many efforts into it, now a user just needs to enter a word e.g "Convert" into a search field and U++ help system TreeCtrl opens all related Topic items...
So, I'm very interested - how did it happen?
1. You haven't pressed F1
2. You haven't found where to enter "Convert".
3. You didn't have an idea that you need to enter "Convert".
4. You didn't know that all the documentation is on the website and there's a similar search field on the left side with a letter G.
5. You only open the top No 1 google link and not No2 because:
5.1 don't have a habit of deep searching...
5.2 didn't expect documentation from open source project
5.3 other reasons.
P.S. These questions might be useful for the "future generations" of U++ users...