I have a project with single-spaced lines.
I’d like to increase the leading to 1.2 or 1.3.
Is there a way to do this globally before compiling?
Is there a way to do this while compiling?
Possible similar question: https://forum.literatureandlatte.com/t/unable-to-change-line-spacing-for-epub/36772/9
Go to Preferences > Formatting and click in the sample text area; use the button on the right to choose the leading you want, or I prefer to choose “Other” and set leading as well as space before and after paragraphs there. When you’ve done that, open your manuscript in Scrivenings mode and choose Documents > Convert > Convert Formatting to Default Text Style.
If you only want to do it for this project, you can use Project > Text Preferences to do the same thing.
Remember, that if you set the leading like that in the editor, when it comes to compile, if you set Compile > Formatting > Override text and notes formatting to on, you will have to check the leading in each of the text areas you’re going to compile in the same way.
Alternatively, you can just leave things as they are in the editor and set the leading in Compile as above.
HTH 
Mark
Thank you.
I’m interested in changing the leading for a particular project. More specifically, the body text (styled under a different name) needs to have increased leading.
When I go to Project=>Text Preferences the “Main Text Style” box is greyed out.
If I check it, the Main Text I see the my global writing format (Courier, double spaced) not the styled paragraph text. If I click on “Use Current” I get the body text paragraph style, but not the preset custom style for which I wish to change the leading.
There doesn’t seem to be a way to edit that style from this dialog to increase the leading.
You need to tick “Use different default formatting for this project” first, then the text box becomes available. This means you can change things like footnote marker without changing the default formatting if you want.
Mark