This script makes it possible to leave annotations on the overhead map. This can be useful for exploration or for reminders about ammo caches, switches to flip, etc.
There is theoretical support for co-op games, but this has not been tested extensively. Scenarios that make heavy use of Lua such as Eternal and Where Monsters Are In Dreams might not work nicely with the Annotations script.
Along with the included Readme file, you can watch a tutorial video here.
First version. Persistent annotations, presets, and custom strings.