Vintage delay plugin hold mode

[Music Manic]

I love the sound of Celmos Vintage delay plugin and its hold mode. I've just realised DNA's has a hold mode too. Can values be selected for the amount of time the incoming audio is held or are they set? I'd like to assign the hold button to midi so it can be controlled by the DAW to create perfect loop points.

I haven't had much time to play with the Optimus but would appreciate your opinions.

Thanks