Unless I'm missing something, this is a very odd feature.
I created a custom ease to use on multiple motion tweened objects, but when selecting the second motion tween, the custom ease I created for the first was nowhere to be seen. Do I really have to recreate Custom eases, or re-add preset ones for every single motion tween? If so, this is going to get both very tedious and also error-prone as the number of objects increases.
Any help appreciated!
you should create a custom preset (window>motion preset). that custom preset can then be applied to multiple objects multiple times with minimal effort.