Nice idea indeed.
Some items on the agenda for a TM Tips & Tricks video...
How much memory overhead is taken by Scatter/ Paint if the terrain is huge? Should we do it in chunks?
What are the advantages/ disadvantages of OBJ/FBX/SKP file types?
What if my file is getting over 2Gb in size? Where to start optimizing?
What is the biggest burden on performance? Polygons/ Objects/ Texture resolution?
What is best practice if our CAD does not have Datasmith?
Why do too many items in the Media list take forever to regenerate?
Does having a complex Video with many keyframes impede performance?
Does running TM on a 4K monitor impede performance (if there are other 4K monitors on the GPU)?
Who in TM developers' view wins the Gaming/ Quadro GPU debate?
So much of this it trial and error, with experience often relied upon to find make-shift solutions - but some general guidelines from Epic would be really helpful. I hope your idea will gain some traction.
I've proposed a "Number count" (number of items), as well as "Size contribution" (bytes/ Mb) of items in the Scene graph. This would go a long way to identify the items that are unnecessarily heavy and are bogging down performance.