Thank you very much for answering my questions. I'm sold, and I just purchased the engine now actually.
Now directly contrasting my previous questions, which script contains the data used for customizing the Character Customization to add or modify the options? Also, what is or where can I find the formula for damage calculation? Everything in the editor is very neatly organized, I'm just a bit lost, sorry.
Character customization data is defined in minit_title_charactercustomization (Script --> Menu System --> Menu Initialization). It uses the class data from init_player_classes (Scripts --> Data Mangling --> Player Stats), and the starting gift data is set up in the Create event of object obj_charactercustomization_setup. (The class data is used in some other places, like listing your class on the Status screen, but the starting gift data isn't, that's why the gifts are handled a bit less ceremoniously)
Damage is computed in rpg_compute_damage (Scripts --> Data Mangling --> RPG elements). It's a basic sum of ATK - DEF for all elements, the stats are set up by rpg_combat_statblock_init, and given actual values with rpg_setup_attack_stats for hitboxes. contact damage, etc., and rpg_setup_defense_stats for enemies.
There's some secondary uses as well (magical stats and luck influence elemental resistances, physical stats influence physical defenses, attunement gives you more spell slots) but those are the main uses.
