I've been looking for a possible answer to this question for a couple of hours now and have come up with nothing.
I'm exporting a 3D layer in Photoshop to bring into Element 3D in AE. The object has a couple of different parts/layers in the "Whole scene" button in the "3D" panel, one of which is simply the letter "F." I want to delete this letter from the full layer, but I don't see any options to do so. I can hide the letter in Photoshop, but when I import it into Element 3D, it's still there (and completely off center and resized, but one thing at a time :) When right-clicking on the letter layer in the 3D panel, no menu pops up like you might expect. The delete button doesn't do anything and the little trash can icon in the bottom right only seems to allow for deleting lights in the scene.