Indicator Icon?

Hello. Im trying to make it so when a hero picks up a particular item, this arrow image which I've made and imported will hover above the hero to show the other players that he is carrying the item.
No doubt I have to use the Image actions, but I don't know how to use them?

Ummm, why dont you just attach the ALREADY EXISTING IN THE GAME arrow 3D MODEL to the overhead of the unit. (Using an attach special effect trigger)

You can also try avoiding using triggers by making the overhead arrow an art attachment of a dummy passive ability and give that ability to the item. You know, similar to when you pick up Legion Doom Horn, the unholy aura art appears under the hero because the item has unholy aura.

Never use the Image actions, they're not very good. Better to make a plane and display the plane.

Anyway, I would suggest the same as Anitarf; no need for triggers here.

Of course Anitarf is right, i didn't really register that he wanted to have it as part of an item pick up.