Note: If you customize the line style and arrows of a link
symbol (such as a PDM reference), your styles will override those selected
in the Display Preferences dialog, and may cause confusion and inconsistency
in the model. To ensure coherence in a model governed by a notation, select
Notation for the Style and Arrows properties on the Line
Style tab.
For more information on the Symbol Format dialog (including
the custom symbol options that let you control the default format options
for the symbol, and whether users can edit them, on a per-tab basis) see
Core Features Guide > Modeling with PowerDesigner > Diagrams, Matrices, and Symbols > Symbols > Symbol Format Properties.