Level Editor Improvement

This page contains ideas for improving the level editor supplied ingame as a developer tool, as well as a potential modding tool by non-developers.

The help text format can be improved. Currently it is a rather long-winded, monolithic piece of text in a stylized format; perhaps a more interactive form (such as a FAQ-format dialog) will be better.
A "bucket fill" tool for floor tiles to quickly fill up non-rectangular areas with a single tile type.
A "stencil layer": this would be a floor layer of a special type, that can only contain "stencil" floor tiles. These floor tiles are black-and-white, with white marking full opacity of the tile in the same position on the layer under it, and black marking full transparency. Drawing such tiles (as can currently be done with walls) will mean that instead of a few dozen "edge" tiles for each overlay floor type (and possibly even some non-overlay), there will only be one such set.
Improve wall drawing...
Randomized obstacle placement. Obstacles that are variations on a certain "type" (for instance, crates, barrels...) usually need to be randomized when placed in large quantities. If this were somehow done automatically when placing them, it could speed up mapping of e.g. storage rooms. Problems would be determining the spacing between each instance, which obstacles are variants of one another.
Improve random waypoints placing. Placing random waypoints is a problem, because you cannot copy-paste them, and, when you do, them don't come with connections.
Add a "library" widget to store user-made obstacle compositions, see http://bugs.freedroid.org/b/issue368
Allow seamlessly scrolling across level borders (may need refinement to allow user to edit near borders without accidentally switching levels...)