It's pretty common practice to make seamless infinite loops by copying and pasting the first keyframe set to the ending time of the animation. This is somewhat cumbersome, and if you change the first keyframe set, you have to re-copy/paste. It would be great if we could create an "infinite loop end frame" or something along those lines. We would place this frame where we want the animation to end/restart, and it would always match the keyframes at time zero.
Thanks for the great software!