Are there ports with dual-monitor enhancements?

[printz]

Is there any port which, if run from a two-monitor setup, will display the main game in one monitor and auxiliary data in the other? Easiest example: display the automap in the secondary monitor.

[Linguica]

Doom Retro will do exactly that (the automap thing).

[Quagsire]

I wonder if that would be possible in GZDoom or ZDoom.

[Grillkick]

I would love this for GZDoom. An option to have the info from the HUD displayed below the automap, freeing up the main screen would be cool too.