Use Cmd (Ctrl on Windows) to finetune any parameter when adjusting. This is helpful to try different things without losing the original version, so experiment away and try things you might not typically do.
Press Shift + Cmd (Ctrl) + S to save a new version. section and selecting Detach all plugins. (Note: You can detach all plugins by default by going to the General settings, navigating to the Misc.
Sick of the different windows being hidden by other ones? Go up to the left corner and click on the menu > Detached. These are tips that apply at a program-wide level, or are applicable to all of the different sections in FL Studio.