Crosshair by scripting?

Is it possible to show a crosshair at the center of the screen,
without going to the options menu?

(That a crosshair automaticially displays while playing a specific wad, when build in)

For what sourceport? If you are using zdoom, you can just use SBARINFO for that.

Yeah for ZDOOM.

Is there a tutorial or something, because I can´t script.