Keep training dialogue box open
When we buy training from an NPC, the current behaviour is the following:
1) We click on NPC to open dialogue
2) We click on training topic
3) We click on the desired training category
4) Then all dialogue boxes disappear
5) If we want to buy another level, we have to loop at step 1.
This is very annoying. Try to spend 50k worth of training this way, it takes a lot of aiming-clicking time.
A very simple solution would be to keep the training dialogue box open as long as we are buying training from that NPC.