Sublime settings files are consulted in a certain order , and files loaded later may overwrite values in files loaded earlier. That way, they may override values and change settings.

When trying PythonTestST3, I tried to change the 'python_test.command' setting in my syntax specific settings, whereas the 'python_test.working_dir' key should be changed in the project settings.

Doing it that way will leave me with settings that only contain the 'python_test.command' key, but not the 'python_test.working_dir' key, as the settings files are apparently not merged recursively, but only for the top-level key.

A recursive algorithm would allow people to layer configurations, and keep values on the level where they belong.

In that particular case, it would be practical to define 'python_test.command' on a per-user or per-machine level, whereas all other configuration could be coming with the project settings, which are shared by everyone.

I would like to be able to highlight arbitrary lines of text, especially when working on plain text that is not subject to any sort of syntax highlighting.

My original editor from the late 80's was Brief which was nearly universal and close to taking over Epsilon, but alas never happened.  However, it was right when Windows was coming about and Premia created a new windows text editor called Codewright (eventually bought and killed by Borland).  This editor allowed you to choose your key mapping, Windows/VI/Brief/Epsilon.  But the biggest feature it had (which originally came from Brief) was the ability to copy/cut/paste columns of data!  I can't tell you the power and speed this adds to my development.  There are so many times when I have a long list of something and to be able to slice out a portion right in the middle and paste it back in, is an AWESOME feature!  I'd love to see this added in, so far I can find no other editor that does this except Codewright and I keep my old version just for that one feature.  Other developers have come to me to be able to quickly edit things that would take them hours and I can do in a few minutes.

HTML5 & CSS3 Live Preview Window

Ctrl-Tab could show a small dialog (like super-T does) showing the last edited files if the ctrl key is not released. 

So we could use up and down to select any file (or do a fuzzy search). 

The first in the list would of course be the last edited file and on release, this file would be selected. (a little bit like cmd-tab on macosx or alt tab on windows). 

So usage would be the same as today if keys are released (but a little bit different if ctrl is not released)...

Making performant plugins is quite difficult right now due to complex thread management. Gevent would allow for libevent backed io in plugins and use of lightweight green threads.

When I click somewhere in the code viewer, it jumps well past where I clicked. (OS X)

I wanted to implement a plugin to get a split-screen view into the current file I was editing, and discovered that there is no way to change the window layout of the current window. Can you add this to the API? And ideally, implement a plugin with a TextCommand equivalent of File -> New View Into File, but splitting either vertically or horizontally so that both views are visible?

Just fell in love with Sublime, but what makes it feel awkward to me, is that it uses nineties style open/save modal dialogs instead of sheets. When you provide this feature, I'll immediately buy it.