Problem trying to attach PAC part to DModelPanel

I’m trying to attach a PAC part to a DModelPanel like.



panel = vgui.Cre......
panel.etc
panel.etc

pac.SetupENT(panel.Entity)

panel.Entity:AttachPACPart(outfit)


I thought this would just add the part to the entity being drawn and it would appear in the model panel, but nothing is happening, no errors, just the part doesn’t appear.
I’m guessing it’s not this simple…