Creating / adding non-standard barlines
New user: pse. forgive ignorance . . . How can I add barline that is not shown in the standard palette - nor, apparently, available as a customised barline? E.g., A bold/double barline at the start of a bar where a 'begin repeat' barline is available, but not required.
Also, how to set personalised defaults that apply to current and future files. E.g,, when I always want a text entry (titles, chord symbols . . . ) in a specified font and size. Advice appreciated.