ST3 does this, I'm now looking for the oposite..

Sorry, my mistake. ST2 opens a new window so fast in the same place as the previous one I couldn't notice it. The previous tabs were kept on an old window. This is no bug.

Before dragging the last new tab, you can open as many new buffers as you want and type into them. As soon as you do the drag and drop, all gets lost..

I just compiled TM2 and I'm really thinking about moving back again. There are features missing from ST2 that TM2 has (and the opposite too). I'm really thinking about changing efforts to TM2 as it will always be faster (it's C..) and has features I'm really missing from ST2 (like HTML preview).

import sublime
import sublime_plugin


class EnsureClearChangedMarks(sublime_plugin.EventListener):
    def on_modified(self, view):
        icon = "../User/icons/linechange"
        mark = view.get_regions("changed")
        for s in view.sel():
            mark.append(s)

        view.erase_regions("changed")
        view.add_regions("changed", mark, "mark", icon, sublime.HIDDEN | sublime.PERSISTENT | sublime.DRAW_OUTLINED)

    def on_post_save(self, view):
        view.erase_regions("changed")

 There's no need for this anymore..

File settings:

"draw_indent_guides": true