Here's something that keeps coming up for me and would Iove a script i could throw into my ScriptUI panels folder that would allow me to click one button that would do the following:
Enable time remapping for the current selected layer(s).
Create a time remap keyframe at the out point(s).
toggle hold the newly created keyframe(s).
And for a bonus, extend the out point of the current layer(s) to next closest layers inpoint.
I'm going to tackle this eventually but if anyone beats me to it i'll be extremely thankful.
What i'm doing is creating an edit in FCP, where a lot of my edits need to have holds on the end of the scenes until the next clip, to fill in gaps in the timeline. Then I'm using Dale's scripts (from creative-workflow-hacks) to convert XML files into comps in AE, but any held frames don't come over in translation. So i've just been manually recreating the holds in AE but i figure it should be an easy enough thing to script.