okay....
I've created some of my own function chains and also use some simple built-in ones (shaded relief), should I be able to see 'cache items' or something of the like in the chain or is this hidden? I don't see anything extra.
Also, for simply viewing orthophotos I would guess this step is not necessary?....
I'll probably leave it there since I've already created it, only a few hundred GBs....