The F7 x5 command seems to work in the demo version of the Steam version as well.
Also, using the U key multiple times improves the level of all concepts.
Z / X / C is usually a shortcut key for reserving or running an activity, but when debug commands are enabled, the activity loses its functionality and appears to be reassigned to an immediate audition.
Are there any hidden debug mode features that haven't been mentioned yet but are already implemented?
In particular, improving staff capacity is important.
I found it much easier to improve staff skills by editing save files.
Staff skill exp seems to have a maximum value of 500000.
Staff salaries are calculated automatically from skill level, so it seems that you can't hire the best staff cheaply.
By the way, somewhere in the game's main file there should be an audition card rank ratio setting, but does anyone know where it is?