Wish Library Repository

Why search one by one, there are many softwares (cloud based) to mantain libraries to share with all

First of all because libs are not for "all", they are downloadable only by licences b4x users. Allowing public access would create a market that, AFAIK, is almost inexistent ( cracked versions of b4x )

You should re-check that non-existent quote (having notice that my lisence just came in).
Then it should be integrated to the B4X Studio
Allowing ONLY the registered users to have it downloadable by selecting that library.

Although who could say here people re-distribute the libraries in the end. There's actually no control over that to be realistic.