Not sure if this is a good place to put this, but since I haven't seen anything similiar yet... I've been creating a "DM's Helper" wand as I learn bits of scripting, as a way to do little things that aren't in the GUI. Currently the wand's choices for possible effects are:

If cast without a target object:
- Reload the current running module
- Change the area's weather (rainy, clear, snowy, default)
- Advance the current time of day by a number of hours

If cast on a PC or NPC:
- Display that character's stats to the wand's user
- Give that character the full area map

If cast on a door:
- Toggle the door's locked state

I have a zipfile with the exported resources here: http://www.why-bother-me.com/dms_helper.zip

To use:
- import the three files in the zipfile
- either set the module's OnActivateItem script to the imported dm_onactivate script or add the contents of dm_onactivate to the current OnActivateItem
- start a game, and give the DM a copy of the wand

I haven't solidified my naming conventions yet, but the scripts shouldn't overwrite anything. To be safe, import everything into a blank module first to see if there's anything that might need changing.

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Morituri Nolumus Mori!