Sim
Some of such stuff could be fixed using timer and check for all opened files once a second. Going to fix: - [x] Check files on Rename folder - all...
Then QFileSystemWatcher for each Editor bound to a file
@dail8859 could you please check and possible merge this PR. I think further improvements could be in other PRs.
Merged current master and tested
I think we are talking about different stuff. I mean these (per project) menu items like "do something with current project" They are just "exec some stuff" using QProcess 
Lua could be useful for filtering and/or controlling the editor itself. Like placing bookmarks and navigating between multiple files. I.e. Now I am debugging a network code tracing it from...
I am not sure what problem which this PR solves is exist at all. Consider user wants to install fake steam_api.dll into KFX installation so what?
Okay. I am a bit concerned about bloating dependencies but ok
Yes. Better to add it. I think you don't have to support it in your Qt Launcher. (I hope you have place for "other options" there)