Yeah, of course.
what’s up with the mesh - placed in the level manually, part of an actor or spawned dynamically?
The mesh is part of an BP actor, placed in the level. It’s basically a light that attaches to a product. Should mention, this is a Magic Leap project.
where does the mesh get its material assigned / updated
The material is assigned directly to the mesh - there are 3 materials for this particular mesh, and the “light” that I need changing is element 0.
what’s the relation with the widget & mesh - is it a 1:1 ratio, 1 mesh + 1 widget and that’s it or…?
1 mesh, one widget. The plan is that when the user points (overlaps) the light, that widget pops up and can be used to control the light intensity etc. Then there’s a button to close.
are you going to have more than level (otherwise you can do some stuff in the LB directly)
There are multiple levels, but they are all very separate. This level won’t have any effect on other levels, and this product is the only thing in this level, so I imagine the LB is fair game 
Thank you!!