almende/chap-links-library — pull request #245 by hansmaulwurf23 (2014-02-03 21:59:43+00:00)
Title: New option 'timeChangeable' to restrict horizontal movement

The idea is to allow editing the group of an item only (like groupChangeable to allow editing times only).
As far as I read your code this has to be checked in onMouseMove only. Tell me, in case there's more to do.

Martin