As suggested by kyoshiharu, this version includes a remote control equipment item that lets you control your helicopters. Once you place it in your armor grid, a button will appear in the left top corner where you can access the remote gui.
It's not yet finished but I'd like some feedback. I fixed every issue I could find, but this was a pretty complicated piece of work. So if someone is interested - please give it a try and let me know if you have any problems. I'm sure there are some left. If you do, make a post here and please don't forget to include information on how to reproduce it. If you have any suggestions, let me know ;)
DL: https://forums.factorio.com/download/file.php?id=27725
How to use:
Imo it's pretty self-explanatory. Things to mention are that left clicking the to-player button will let the heli follow you, while shift-clicking will send it to your CURRENT position. Right clicking the top of any window will close it.