I can select the paragraph > Right-click > Paragraph settings > Uncheck "Indent Paragraph" > "OK".
But now new paragraphs still have the same indentation. How do I stop this completely (other than always having to do the above for every new paragraph)?
(I followed this: prevent indentation of a paragraph but my goal is to permanently stop the indentation.)
Document > Settings > Text Layout > Indentation > Choose "Custom", and enter 0 > "OK"
Aside from the setting mentioned by user182601, we can change the LaTeX code, either from the preamble using \usepackage{parskip} or insert inline code [Ctrl+L] and noident (for a specific paragraph).
Credit doncherry and Carsten Hagemann. https://tex.stackexchange.com/a/27807/208394
