I'm trying to add a warningitem to one of my monsters as special loot,

This works in game,

Neither of these work, I'm not sure what else to try. there were a couple of otehr things i had in mind for loot which had the same type string.

Is this possible?

if you have an item that takes arguments for its constructor as in

[add warningitem "itemid" "range" "warning"

then when you add it in a spawn entry, you would separate those arguments with commas instead of spaces, like

orc/ADD/warningitem,xxxx,xx,xxxxxxxxxxx

You could put it between the grouping brackets '<>' like

orc/ADD/<warningitem,xxxx,xx,xxxxxxxxxxx>

but it is not necessary since you arent setting any properties on it.

If you were just spawning it instead of adding to something else that you are spawning, it would be the same thing. The spawn entry would look like

warningitem,xxxx,xx,xxxxxxxxxxx

But if I needed to make it movable i would do

/ADD/<warningitem,xxxx,xx,xxxxxxxxx/movable/true>

Right?

*EDIT* I tried that and it worked beautifully.

right.