SocialEngine 4 - where to find normal documentation?

Question

Documentation

We are doing a test project for a customer, studying SE 4. Where can I find detailed documentation on SE 4?
All links, including from habr, lead to scanty or unfinished help.
Most sites tend to offer services, which is not suitable.
Is there anything worth bookmarking? Tell me please

Answer 1

Offtop
Alexander, wrote you a letter in a personal.
And from your site I wrote to you a few days ago, but have not received a response so far.
Could you answer?
Thank you!