You can select one portion of the split wall and Edit > Cut then Edit > Paste. It will reappear where it was originally, but no longer connected to its other portions.

If there is an easier way, I'd love to know too.

Sorry, the link in that post was incorrect:
https://github.com/shlomoswidler/sh3d-level-tags-plugin/releases/latest

That will always have the latest release.

And the latest version (1.0.7) has some minor fixes:

Changed
* Relocate *Show Only These* button - now in a row by itself
* Fix status bar version number display - now read from Application.properties

I had a similar issue, and after solving this one I wondered how to make a nice sloped ceiling for the vault interior:
Create a room whose borders touch the interior surface of the walls. Use the "Generate Roof" plugin to create the sloped ceiling. Paste it into the "top" level and adjust the ...

By the way, version 1.0.6 has been released with these improvements:

Added
* Add *Show Only These* button
* Add French localization (credit: Olivier Oudin)

Unfortunately it's not possible to completely hide the tab of hidden levels using a Plug-In.

Thank you.

OK, thank you. Installing the most recent release from SourceForge fixed the issue, although I lost all imported furniture and textures in the process.

Why would a broken version have made it to the Mac App Store?

I just installed the update from the Mac App Store and all furniture in the library is gone...



I dragged the app to the trash and reinstalled, and it is not fixed.

How can I fix this? Please let me know if you need more info.

So many levels, so many different combinations... my project became too complicated to keep individually switching level visibility. I needed combinations of levels and a way to easily show/hide multiple combinations of levels.

So I developed the Level Tags Manager . It adds tags to levels, and the ...