Node Locking and "Training" in GTO+

I have questions for GTO+ owners/users..

How good is the node locking in GTO+?
Can I lock all "future" nodes from a certain point (i.e post flop)?

What I'm looking to do is simulate a passive/trappy player that will only call or fold post flop in response to my actions.
I'd then like to train flop/turn/river with random holdings vs. random flops (i.e "play against the solution")

Could I do all of this in GTO+?
I know I could do this in PIO solver but obviously that is a lot more expensive.

Dunno man I'm so wasting the potential of this software on my PC.
Have you checked what this says:

Yeah , just set the bet options for villain to 0 only, run a databse then play against that database. Your holdings will be random but only within the range youve set yourself