Feature request: output mode to only update player positions

[GRMule]

If I have generated a viz of my world, and I only want to see an update of the player positions that have changed after a short amount of time, I have to regenerate either a full webapp or one with most of the images. It would be nice to have a fast output mode to run in the viz helper that only updates player positions on an existing generated instance of the web app, without having to wait for all the image slices to be re-created.

Another possible addition is a run that updates object positions/existence only, similar to the player position update.

[animator013]

+1