How do I set a state to light up / glow in DeHackEd?

[Ar_e_en]

From what I understand you basically have to add a specific power of 2 number to the "sub-sprite" field, but I'd like to know specifics.

[boris]

See the first paragraph of the "Special semantics" section here: https://doomwiki.org/wiki/State#Special_semantics

 

The number you're looking for is 32768. If you're using WhackEd you can just tick the "Always lit" checkbox for the state you want to be bright.