To add a base point parameter to a dynamic
block definition
Click Insert
tab Block
panel Block
Editor. At the Command prompt, enter bedit.
Click Block
Editor tab Action
Parameter panel Basepoint.In the Block Editor, in
the Block Authoring Palettes window, Parameters tab, click the Base
Point Parameter tool.
Specify a location for the parameter.
Click Block
Editor tab Open/Save
panel Save
Block. At the Command prompt,
enter bsave.
If you are finished using the Block Editor,
click Close Block Editor.