I can’t find any information on how to expose a Blueprint UProperty defined in C++ to a sequence so that you can add a track for it. I assume there is a metadata property, parallel to ExposeOnSpawn, that would implement the same functionality as the Expose To Cinematic checkbox in the Blueprint editor. I have searched a bunch and had no luck, so any help is appreciated.
Interp specifier (not meta data) exposes property to both Matinee and Sequancer
That worked. Thanks!
An example for anyone that is looking 
UPROPERTY(EditAnywhere, BlueprintReadWrite, Interp, Category = Transform)
float Angle;
Can we expose structure variable too?
I’ve tried, it exposed but not working in sequencer
having this question as well