It's been a while since I've done work inside a solver.

But from what I remember I could do things with a wrangler like set up a custom velocity.

I'm guessing mpm solvers are a bit different because when I try to set up a velocity with a geometry or pop wrangler,
the sim seems to ignore what is being set altogether.

At the moment I'm still going to get what I want post processing the sim, but I thought I would explore making velocity changes within the sim itself to see what can be done.

Anyone have a way?