Well I’m just commenting on the idea that UE4 does not support progressive morphing when it does. Morphing is morphing so how that would be impractical in a video game? I used 3ds Max to create a series of flapping flags using cloth simulation and exported to UE4 as a progressive series of morphs using Alembic used in a real time networked based game. No magic it’s old school vertex animation.
Granted more tools the better.
By the way FBX does support point cache data, which is an Autodesk feature, and my guess why Epic chose Alembic.