It would be nice to create named subversions of the same style instead of just marking the changed paragraph styles with a + sign.

Then such subversions of one style will be saved with an additional qualifying name, and they can be quickly assigned in the right place in the text, instead of manually marking up the text.

This is somewhat similar to the existing style group, but with slightly different functionality.

Let's say we need to build a table of contents. In this case, each heading has its own level of hierarchy, but several different paragraph styles cannot be placed at the same level of the hierarchy. If we could use the common thin style group name instead of a specific paragraph style name, a lot of nasty things would be solved.

Another example concerns text variables for paragraph styles when creeping headings are applied. Several sections of the same publication may have different hierarchical structures, and different paragraph styles may fall on the same hierarchy level.

Therefore, the introduction of versions of a single paragraph style would allow not to complicate the structure of the document too much by using many master spreads and manual control over them.