QoL suggestion: If I pick an investor who gives the "Classes are free" perk, could I get a clickbox near the Train Girl button that means, "Train all girls not in a class"? It's kinda tedious keeping them all in class all the time.
Alternatively there could be a new improvement in that case, "Mandatory Training". After this is purchased, all girls will always be in class.
And on a gameplay note: I often wish for a semi random booth setting. I want the setting I pick for a booth to either be a minimum or a maximum. So if I pick "foreplay minimum", that booth won't get dance or pose scenes. If I pick "foreplay maximum", then I only get dance, pose and foreplay scenes.