Creating a gap in ICEM shape morphing

Hello everyone,

I saw a video where a user creates a gap on a SubD surface using ICEM Shape Design. I tried replicating it but couldn't find the same feature in ICEM Shape Design. However, I did notice the "Create Gap" command in ICEM Shape Morphing.

Even with similar parameters, my results are not the same. Is there a tutorial for this? If yes, please share.

Thanks!