Wraparound gimmick:
The current "Wrap" checkbox will, from the next update, only be *horizontal* wrap-around.
The checkbox following it (currently labelled "(Gim23)" will be *vertical* wrap.
If you want your level to wrap both ways, please make sure *both* of these are checked. (It doesn't matter that (Gim23) isn't currently labelled correctly; it's still saved to the output level file and so will function fine once a player that pays attention to it is released.)
Note that Solid Floor and Vertical Wrap are incompatible, and as such, from the next update, Solid Floor will be ignored if Vertical Wrap is enabled. (However, you can combine Solid Floor and Horizontal Wrap.)
General notes on trigger areas:
I'm probably going to look over and adjust some of the trigger areas at some point soon - I'll try to do it before the next update. Anything that relies on pixel-precise positions of them may need to be adjusted after that. It won't affect one-way arrows, most NeoLemmix-exclusive objects (possible exceptions are locked exits (as their current trigger areas are direct copies of the standard exit ones) and one-way fields (which aren't really NeoLemmix-exclusive)), or anything in the Lemmings Plus III styles except maybe water (and the visually-water-but-mechanics-wise-fire object from the Lab style).
Note on window position:
I'm going to adjust it back to the original X=24 (instead of X=25) spawn position. This may affect levels where the window is precisely placed. I'm also going to move the Y spawn position one pixel higher; this gives more consistency with what is or isn't a fatal fall (for example, Mayhem 1, where currently the entrance has been moved up by one pixe to keep the initial fall fatal). So, if your window position needs to be pixel-precise for any reason, it should be moved one pixel right and one pixel down from current position.
Additionally, in custom styles, I'm adding an option to allow custom positioning of the spawn position. Simply use the Trigger X and Trigger Y of the window object to specify them. However, I don't believe the current version of LemSet allows setting these on windows (they'll be ignored), so I'll need to make an update that does, most likely. If they aren't specified, the default position will be used.