Change file mode in the side bar(ala chmod +w, etc)

Some editors allow to change the file mode right there in their project tree UI, in the case of sublime, the side bar. I see this feature useful when app is in full screen mode and I need to change/add the mode to a given file, In windows and need to go to the win explorer and right click then go to properties and uncheck the read only checkbox. In the case of linux/mac is chmod +w.

This need happen to me due some VCS populate files in read-only state, so I need to go and change their state as need it.