You get the DB, the files are XLS, not xml... i.e. Excel sheets...
Step 1
The only thumbnail/sheet you need to alter is the first one (forget the other ones for the moment). Duplicate the entry (row 153+) for as many as you need...In column O, you need to enter for each new row the image name (one for each)...
Then you enter the name of the models pic
(nb: forget the other two but supply them, the engine finds them automatically from the models one)
Once done, send the file to Hok, the guy in charge of WIA, and/or to Lodilefty, WIA coordinator. He will do the export.
Step 2
You need to alter the units XLS DB, to duplicate new units which will hold the new models IDs. Check row 244 there and duplicate, entering the new models ID in column M as required. Send the file, take note of the new units names.
Note: when you duplicate models or units, their UID and names alias must be different.
Step 3
Take EACH setup xls file for every scenario you want to have your new units, then replace the units alias by the one of the newly created, when relevant and applicable. Do not forget to check both thumbnails/sheet; i.e. at start forces and events. Send the files
IMPORTANT: when you do a change in those excel files, then save the files under different names + every change you make must be identified by a different font and/or cell background colour. In this way, everyone can track the changes you made and fix the more than likely errors that will come into them (I still do dozens of errors even if this is now my 5th game with AGE engine
)
Good luck
PS: I am not Pocus