The closest thing to realtime most likely outside of screen/VM sharing would be using git/svn and doing regular commits. Then you can just quickly grab the new resources and check out what each of you are doing.
If you really need 100% real-time collaboration, look into maybe some kind of VM (virtual machine) setup. Or find a programmer who is free, tell them exactly what you want, and see if they’d be willing to write you a plugin.
[QUOTE=Inator;113310]
And one more things, whats up with people on forum beeing so nice and all? Never seen level of kindness in a forum before. I like it already!
Because is Epic community. 
The excellent community and the openness from epic made it worth the learning curve for me.
Where can i Ask a programmer to make me a pluggin like that? Can I do it here?
Either you do it in here:
https://forums.unrealengine/forumdisplay.php?12-Community-Content-Tools-and-Tutorials or directly in the programming section: https://forums.unrealengine/forumdisplay.php?9-C-Gameplay-Programming
For those looking for the trueSKY plugin: ://simul.co/truesky/truesky-on-unrealengine-4/
It’s in beta and needs testing. Zonal weather is on the worklist but not yet implemented - now would be a good time for other requests.
Truesky looks very nice indeed. Unfortunately, my project is strictly limited to using UE4 community contributions. Curious if someone has been able to achieve similar results to Truesky in UE4 with just blueprint and materials?