This is a screencap of a UTM file I edited with TlkEdit2 for my mod Unlimited Ammo 4 Sale DAO/DAA: I don't know of a tutorial specific to editing UTM files, but the basics for using TlkEdit2 are covered in my tutorial on editing UTC files. (In my experience, the toolset will usually crash or lock up when trying to save an edited, exported UTM file.) To add the items into the inventory without a script, export the UTM for the vendor and use TlkEdit2 to modify the StoreList in the exported UTM. (I used a PRCSCR script to add a new modded item to a merchant inventory in A Miniature Golem Doll the uncompiled scripts are included in the mod archive.
( Adding an Item to an existing Vendor or Container template script). The toolset would be used to create a PRCSCR script that adds items into a merchant inventory. I don't know any way yo use the toolset to directly edit the UTM to include items from mods.
