You can already perform 'tile grouping'.
In jLB, grouped tiles are called 'Favorites' : select some tiles you want to link, and then click on the "Make Favorite" button.
In the "Entity Type" list, you'll be able to find all your Favorites, and, since Favorites are saved in your tileset directory, you'll also be able to re-use them accross different levels.
This is a great feature! One of the many reasons a more simplified interface might benefit jLB; features like this could be easier to spot if the UI is a bit less cluttered (the MakeFav. button is
very easy to miss). Nonetheless, knowing about this made me think I ought to take a much closer look at the editor and its various existing features.
EDIT 1:
It seems there is a "Group" function as well (Entity Type: Group). Does this also group items? I've now seen that this feature is only available in "Advanced" mode and not "Lemmings" mode. Could the feature be made available in "Lemmings" mode as well?
EDIT 2: I've just taken another quick look at it and I'm fast beginning to see the potential for jLB to be
the editor for SuperLemmini levels. I'll get an overview together at some point and begin to direct players towards it more often. Standout features are the minimap display for quick jumping to different areas of the map, and the piece selector list which allows selection of pieces without having to actually locate it amongst a cluster of pieces: this is revolutionary. I'm not sure how your editor has gone under the radar for so long, to be honest.
A few bugs I noticed, though:
* Zooming in removes the minimap; keeping it available would make it much easier to quickly find an area when very closely zoomed in
* Meanwhile, the Zoom>Open 'Zoom' Window doesn't work as expected, i.e. clicking within it doesn't relocate the zoomed area
* Ctrl & Mousewheel Scroll zooms in, but not to the selected item (which is expected). It seems to zoom in to an arbitrary area of the screen, which isn't particularly helpful. Is this something that can be configured?
* User configurations aren't saved upon exiting the program (for example, I have to keep turning the reference lines off)
A way to set the default "load" folder would also be great for general convenience
I'm working on such a built-in editor which will allow to set - and dynamically view as a red rectangle - Objects' trigger area
Brilliant stuff, well worth adding this. Trigger areas can be a pain to get right in SL levels, this will massively help