As mentionned here : https://ask.libreoffice.org/en/question/155765/more-linestyles-for-borders-in-calc/?answer=155808#post-id-155808 : Can we have more choices in the linestyle of borders in Calc ? There is a dotted line style available, but I would like for example a dotted line that has a lot more space in between the dots. It would be great if we could have custom linestyles for the borders in Calc, such as the ones for a Line object. Thank you very much in advance.
One of the problems is, that border styles as used for cell borders and frames are different from line style as used for outline of shapes. Such custom border styles would need extending the file format.
(In reply to Regina Henschel from comment #1) > Such custom border styles would need extending the file format. ...which makes this request a WONTFIX. But I agree, it would be desirable to have one list of linestyles (not the limitation at some places) and ideally an option to define own.