The formatting options available in Atticus primarily focus on global settings in the theme which are applied across the entire document. At this time, it’s not possible to adjust the line spacing for particular segments of text. However, depending on your needs there may be other options to reduce line spacing in a segment of text.
Lists:
You can adjust the line spacing in the print version which will decrease the spacing somewhat between bullet points, but this will affect the line spacing throughout the document. At this time, it isn't possible to adjust the spacing for lists specifically.
Keep in mind this will not affect the eBook, because text settings like line spacing or body font of eBooks are intended to be controlled by the reader on their individual reading devices or apps these settings will not be programmed into the eBook.
We are looking into the possibility of adding customization options for list spacing in the future, but I don't have any definite details at the moment.
Block Quote/Verse:
If you need to reduce the spacing between lines when working with Block Quote or Verse, I would recommend using soft returns (Shift + Enter). If you would like the next line to start right below the first paragraph, you can press Shift + Enter once, or if you would like to leave one blank line between them, press Shift + Enter twice.
Spaced Paragraphs:
If you'd like to remove extra spacing between lines from just one particular section, you can use a soft return (Shift + Return) between lines.
Footnotes:
The spacing of footnotes in Atticus follows industry standards, with notes single spaced and double spacing between individual notes. Adjusting this spacing isn't currently a feature within Atticus.