Currently the only interpolation between UI animation keyframes seems to be linear. Is it planned to offer a selection of interpolation functions, or even specifying custom curves?
Bump.
This is pretty limiting when it comes to UI design. I can’t see myself making a proper game UI with only linear interpolation in UMG animations. I’m surprised this issue does not come up more often.
Awesome! thanks!
Yes this is tentatively planned for the next release.
Any updates? 
It was implemented in 4.8