Help with DxDraw

[Lergen]

Hello. I've been trying to make a script so that when a player types the command handler, it draws an image above their head for a few seconds before removing itself. Do you guys have any advice for going about this? I've tried referencing a few resources that do something similar, but still can't get it working.

[Overkillz]

Might this helps you.

dxDrawImageOnElement()
addCommandHandler()
onClientRender()