How to add RTC client to latest Eclipse
One answer
There is no question that any one on this forum can answer. This is basically a rant.
You can refine your question to make it a question that we can answer or delete it or let me know if it can be closed.
I either use a fresh install of the vanilla RTC Client (using the plain zip version), or I install a fresh Eclipse from Eclipse.org and install a RTC P2 into it.
There are some unsigned packages and I have to accept installing them.
Other than that, I was unfortunately enough to have to use Maven in Eclipse recently and some weird issue came up where it would not connect. No hint how to solve it in the internet, I could find. Reinstall did not work either. So if you are lucky and don't run into problems, fine. If you do, you are in trouble, open source software or commercial does not matter that much.
Good luck.