Almost all the time I’m starting Sublime to open an existing file or to open a project folder. I always have to close the new window that Sublime creates at startup. It’d be really great if it would not open a new window. Could such an option be implemented? Most text editors have this feature.

What OS are you using it on? On OS X, if ST2 was closed with no windows open, it starts up with a blank file - in this case I just CTRL + CMD + P to open up the Go-To-Project menu to quickly open up an existing project inside that blank window. If ST2 was closed with windows open, it will automatically reopen those when relaunching ST2. This is proper behavior IMO.

On Windows OS it’s sort of clunky because when you open a project it opens it inside a new window instead of that existing blank window.

I’m using it on OSX. I just want to start the app without it creating new windows or open previously open files.