Hi Marc,
I did a feature request and uploaded the patch file [0] to Sourceforge. But it is relevant to Context. Therefor I think it will review after the deadline. So I like to much familiar with that Refactoring project.
When I implementing above feature I went through the tbl_change.php file. I need to familiar with other files also which is relevant to above project. So  if you have any idea, please let me know, I am grateful if I could get to know your suggestions.

[0] - https://sourceforge.net/tracker/?func=detail&atid=377410&aid=3507001&group_id=23067
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Regards.

Thilina Buddika Abeyrathna,
Department of Computer Engineering,
Faculty Of Engineering,
University of Peradeniya,
Sri Lanka.