To add a flip parameter to a dynamic block definition
Block
panel
Block
EditorAt the Command prompt, enter bedit.
Action
Parameter panel
FlipIn the Block Editor, in
the Block Authoring Palettes window, Parameters tab, click the Flip Parameter
tool.This first point of the reflection line is the default location for the flip parameter grip.
Open/Save
panel
Save
BlockAt the Command prompt,
enter bsave.
Toolbar: Standard