so when I look up an item id like the skin for say this item https://steamcommunity.com/sharedfiles/filedetails/?id=1109441387&searchtext=suit
do I use long Tshirt as the short item name so it would be .... skin add long tshirt 1109441387 ..... is that how I enter it ?

or can I just do ... Skin add 1109441387 ?

You should use tshirt as shortname and numbers as ID, ye.

ok thanks I wasn't sure how you get the shotnames of them to skin them