[DCP-o-matic] Editing subtitles

Okay, got a first grip on subtitles, was never able to do much testing on this, but after teaching myself the simple Subrip format, I am able now to create test files for various issues. Now, the 'Show' Option under the Subtitle tab opens a nice list of the titles. I'm wondering wether it would be too much work to actually transform this table display into a basic editor? All one needs would be to create/delete/edit entries in start/stop/content columns, nothing fancy... I know most people will prefer external 'real' Subtitle editors for doing substantial subtitle work, but having a simple editor to clean up glitches or create individual titles would still be nice, no? - Carsten