Yeah, we implemented the whole Section Type and Layout system to get around how very awkward it was to do things like this in v1. The only tool v1 had was basically what you have in the Default Types by Structure tab in project settings, except that was in the compile settings, and it was directly tied to what you would consider a Layout now, the formatting itself below, the text/title/checkboxes, the title prefix/suffix—directly tied to levels and “icon types”.
Hence, the only way to turn off the Title checkbox or change the formatting of a particular “class” of item was to mess with artificially induced nesting to create more levels to work with, or use file groups for one type of thing at level 3, and folders for another type of thing at level 3, and so on. You’d see people putting their front matter into a folder purely to get it to level 2 so it could have different headings, that sort of thing.
Now you just create an “Interlude” section type, set the special section to “Interlude” in the inspector for these items, and then tell interlude sections to print using the regular “Section Text” / “Titled Section” layout (or whatever the purpose is for having some chapters with special headings and others not).
We can work something out probably, in v1, but let us know if that even matters. Upgrading will make this much easier in the long run (after a bit of a learning hump). Also don’t forget upgrade rather than buying it all over again. It’s about half off with your old serial.
If you are going to to go ahead with v3, then please refer to this post. There are already a bounty of discussions on this particular desire. It sounds you’ve found a few, but this list of links is aimed directly at having some sections of your binder using different titling protocols (typically people ask about this for intermissions, epilogues, and so forth, but the reason for wanting a different heading style is somewhat aside from the common ingredients).
Interestingly, you will see a link to a v1 video tutorial as well, further down that discussion.
I’m moving this back to Windows, because in this case it’s unlikely Mac users will encounter this model any more (those old versions don’t run unless your computer is ancient).