[David Durham]

would be nice and should be fairly easy to do. I think typical implementations involve a checkbox to replace tabs with spaces, and a textfield with the number of spaces to put

Hi, this feature request has been resolved. To replace tabs with spaces, go to preference: General->Editors->TextEditors->Insert spaces for tabs and check it, you can also set the tab width. And then you can format the text with Ctrl+Shift+F to see the result. But now you have to check out the latest source code and export as deployable plugins to use.