See <Opt.><Preferences>, select Display (! You must do this !). On the new pop-up window very close to the bottom it has a check box for: New line for every section (part marker). Uncheck this box.

Guido


Desktop; i7-2600k, 8 GB mem., Win 10 Pro, BIAB 2017; RB 2017 - latest build
Laptop: i5-2410M, 4 GB mem, Win 10 Pro, BIAB 2017; RB 2017 - latest build