How to emulate the chain dynamics from the modular control rig in normal control rig

As per the title,

I’d like to emulate the dynamic setting from modular control rig in the regular graph control rig.

I understand it must be a verlet or a normal spring, however I need it to work through the chain - at the moment it just does it for the first bone when I use arrays.

I guess it need to interpolate for each, for each, for each - through the whole thing.

It is for a little tail.