In the Paragraph Designer (Default Font property group), in the Paragraph Tag field, I have a paragraph format, Heading3C.
However, this Paragraph format does not show up in the Paragraph Catalog, even when the "Show All" option is selected.
How can this be the case? How can I have a "Heading3C" paragraph format tag without it showing up in the Paragraph Catalog?
Note: I do see a "Heading3" Paragraph tag in the Paragraph Catalog, but not the "Heading3C", if this is of any significance. I'm baffled.
Any body know how this can be the case?
The paratag could have come in with imported content. FM preserves the content tagging, but doesn't automatically add it to the catalog(s).
It's also possible that you may have a customized view enabled for the paragraph catalog.
re: How can I have a "Heading3C" paragraph format tag without it showing up in the Paragraph Catalog?
In addition to coming in with pasted-in content, it's also possible that at some point someone deleted Heading3C from the catalog, but took no steps to convert instances of text with that tag to whatever new tag they had in mind. This leaves them as what amounts to "catalog overrides".
The next question is why the H3 had that tag, and what it now should have instead. Variations on standard name like Heading3 might be for purposes of controlling generation, or specific stylizing.
In one position I had, Heading3C was briefly used to indicate "continuation", and that it should not be included in a TOC, as the main, identical Heading3 would already be present. Later works and updates used "Heading3.nit" (not in toc) to make the intent more clear to future document stewards. It was commonly needed for chart headings, where there were N charts on N pages, each just variations of each other (units, ranges).
When you type a paragraph tag in the paragraph designer and click Apply, FM brings up the New Format dialog box. This dialog box has check boxes for Store in Catalog and Apply to Selection. You can check either or both. Unless you check Store in Catalog, FM does not make a new catalog entry. Unless you check Apply to Selection, the current paragraph(s) are not affected. In particular if you do not check Store in Catalog and do check Apply to Selection, you can get the situation you describe. The format will not be in the catalog, but it will show in the designer since it is applied to the current paragraph.
Adding one more comment to all the good responses above, while this might seem initially bizarre, I want to point out that having paragraph tags in the document that don't appear in the catalog can be beneficial.
For example, new Fm docs have two paragraphs tags automatically assigned on the master pages that are not in the catalog: Header and Footer. This allows you to define the headers and footers on the master pages, but not worry about inadvertently assigning Header to a subhead on a body page when you were aiming for Heading1.