Creating Pens
To edit the new pen, select Properties from the local menu:
This opens the Edit Pen dialog:
See also 'Edit Pen' Parameters and Geometry Theme.
Create a new Pen from an existing Pen
To base the new pen on an existing one, copy the source pen from the standard library (or a New Library) and paste into an editable library. Rename as required.
The copied Pen can be edited by selecting Properties from the local menu.