I start using Apex 10.5 but see no possibility of custom two-way TCP/IP device control, where devices are unknown for RTI. Some people ask me about webinars, etc and dont say about no possibility and this very narrow bootle head.
RTI is USA brand and many devices are not using in other countries, but have many local, which are not present in RTI library, so i start think that RTI not good for two-way custom TCP/IP device control and poor library for ETHERNET control.
Any solutions in other brands ?

There are a couple of different 2 way generic IP drivers on RTI's dealer forum that will do what you are asking for. Their forum has a ton of good information.

I register on RTI site (already have access) and RTI forum (twice), admin of RTI forum dont give approving. Even on Crestron was more easy