I made a post about this in a similar thread but just incase.
Ok after playing around giving a character clothes is just sidebar - visual (to change appearance within presets).
Giving them equipment you would need to learn the names and keywords of specific items like if you want him to have the axe that braccus uses you would change Equipment to 'Undead_Braccus'.
If you wanted to give something spells then you would edit the script for the character. Adding things like.
or even giving it the choice to self destruct with the script SuicideBomber
Treasure if you wanted to modify the loot could be something like MiniBoss;Undead_Bracus;
(That will make it drop Miniboss loot + Undead Braccus axe + MegaBoss Loot)
You can find the names of the items you want a container to carry in the TreasureTable.xlsm which are editable and you can change what each directory will contain item wise.
Another example - the crate just before the fight on the beach with the Orcs at the story always contains a sword + bow right? The crates loot is set to CYS_Level2Crate. Which = Sword, Bow
I hope this helps.