Handles in runtime

[Fuzzypeg]

Is there an equivalent for this in the current version? All of the documentation I can find is out of date and obi handles aren't a thing anymore, nor is the option to set individual particle positions manually. I have a rope that is being grabbed at one end so I want the loose end to respond to physics, but the grabbed end to stay attached to the hand which is moved in update. Currently, if I use the fixed updater, the grabbed end is floaty and disconnects from the hand, but if I use late updater it jitters. I want it to not simulate physics on the grabbed particle while still doing so on the rest of the particles and I need this to be dynamic because the rope could be grabbed from either end or not at all.