A point parameter defines an X and Y location for the block in the drawing.
In the Block Editor, a point parameter displays similar to an ordinate dimension.
You can also associate the following actions with a point parameter:
If a grip is displayed for a point parameter, you can manipulate the parameter even if no action is associated with it.
Allow Chained Actions for Dynamic Blocks.
The point parameter contains a property called Chain Actions. For more information about allowing chained actions for a parameter, see