help with triggers please

help with triggers please

Im trying to make it so your hero can only hold 1 item of a certain type i.e 1 sword, 1 shield, 1 helmet, and 1 armor, can anyone help me out with how to do this thanks in advance.

Events:
unit - a unit aquires an item

Conditions:
Item type of (aquired item) = (item X)

Actions:
If/then/else:
If (triggering unit) has two items of item type (item X)
Then Item - move (aquired item) instantly to location Y

Goodluck

For the "Then-action" I would simply use "unit - drop (item being manipulated)"

Is there a way to do a check on the player before buying the item? That way the item doesn't have to be bought then dropped thus wasting gold?

Iunno... is there a way to do some mix and match of variables and when item is acquired X is set to 1 and if X=1 when attempting to acquire the same item again, it brings up a unique error message?


Edit:

Nevermind.. you can just have the item be removed from game instead of dropped (or dropped then removed from game) and refund the money.

More triggers, but it gives the same effect.