hj5AS‖Line Spacing: 1

XqUKK‖Applies single line spacing to the current paragraph. This is the default setting.

To access this command...

ebLJB‖From the menu bar:

AJWAM‖Choose Format - Spacing - Line Spacing: 1.

qBbLh‖From the tabbed interface:

FEbDN‖Choose Home - Line Spacing - Line Spacing: 1.

sXy2C‖From toolbars:

4kbqF‖Icon Line Spacing: 1

J2CYC‖Line Spacing: 1

tTfvv‖From the sidebar:

AzUAJ‖On the Paragraph panel of the Properties deck, choose Line Spacing: 1.