You are going to teach me again, I struggle mightily turning to import even one player into a draft class. Now you are going to show me how to sort and import multiple players!
Hope you do not mind many dumb questions, I am often confused and slow on the uptake when trying new computer things.
I am running a variation on your unaffiliated AAA with ability for ML clubs to purchase players in my Historical Random Debut. It has only taken me just over a year to get that semi-right and eliminated fictional players.