how to use custom sprites in gzdoom?

[Kracov]

For some reason, google failed me. Anyway, the closest thing I could find is the brutal doom mod's suggestion to edit the ini file to make it:
[Doom.AutoExec]
Patch=DoomHDv03.pk3

Which is Doom HD sprites but the sprites don't seem any different in the game.

EDIT: I figured out how to use them in the command line. Still would like to use the ini for sprites and other things too.