Target & Damage Indicators
D2X-XL v1.8.13 and up now offers target and damage indicators in various flavors. As a picture says more than a thousand words, I let these speak for themselves:



Target and damage indicators can be enabled separately. The triangular target indicator has the damage indicator integrated.
You can turn off indicators for cloaked objects or players of the other team in team games.
Of course this is all server controlled in multiplayer games and not available if the server does not use D2X-XL.