I do not think, that this one B4x-IDE, that is mentioned many times in the forum, would be very helpful. For me it is really no problem, to have this different IDEs. But there were three points there, that could really help. The biggest one is already realized, the cross platform copy/paste of views (many, many thanks!).
I know, that we can use shared modules and declare the code differences also there. I tried it, but it was more work and not so readable, as writing the code two times. What would be helpful:
1. A read only mode, when opening a project, just to copy/paste some code. It is too easy, to change the older project code by mistake.
2. A text comparer tool, that can compare two modules (B4A - B4) and marks the different codelines in red color.