In V5 (on it's way soon, honest... =) I've changed the behaviour as you suggest, so that a value of 1 means 1 frame between the two key frames (and so on).

Thanks for the report.

The Y Offset was designed in, but I can't remember why now!

Ah, I think I know why now... because when the figure is standing on it's head, your offset leaves enough room to see the head below the zero line. Maybe make the preview window two head-diameters taller? That way the whole head will show when the sholders' Y-coord is 0 or 255.

Maybe have faint lines (just slightly darker than the grey background) at Y=0 and Y=255 to show where you can't drag points outside of... only the head would be able to stick past the line.

Only cosmetic tho... I'm sure you're busy working on other things.

Here's some misc figure moves. I call them: Clock, Serve, Star, Geometry and JackInTheBox. Most of these were me just playing around to see what kinds of shapes I could make with the 11 line segments and 1 circle.

Sometimes, the Star one grows and colapses while keeping the same center point, but other times, it keeps one side lined up and lets the center move.... strange.

Sounds like a sensible plan...

I'm going to have to stop this feature creep and release something, or else V5 could take another few days... =)