Save morph as a support asset (depricated) - so how to?

in The Commons
I want to save a morph, but the usual way "File->Save as->Support Asset->Morph" is gone (due to a new version?). It's grayed out and "depricated". My morph? The export function? My model?
How do I save my morph?
Comments
Save as Modifier Asset.
thank you