Hi, I'm new, need help

im making a small rpg, now I'm totally new to warcraft 3 world editor, though im slowly making progress, i have 2 questions.

1. How the heck do i assigne stock items in shops ?

2. Is it possible to have a rescuable building such as a black smith that would allow players to constatnly rescue it ( ie each time the player walks up to the bulding it becomes his for only that time) to allow for individual upgrades from the same building?

thank you in advance.

To assign items to be sold at a store or somthing, you have to go into the unit editor and select that building. Go down until you see a line called "items sold". Just add the items you want sold there. As for the other question, im a newbie too and have no clue.