Is there a way to fix a sortable item in place by index while maintaining the normal sorting behavior and animation?

[MorkWood2]

I'd like to create a sortable context with many sortable items and I was wondering the possibility for setting a specific item to be fixed so that it maintains it's index and other cards are moved around the fixed item as though it is a nominal behavior. Haven't seen an example of it, nor anything in the docs that can pull off that magic. Curious if any users have got it working.