To Set the Number of Custom Grips to Display for a Dynamic Block Parameter

Click Insert tab Block Definition panel Block Editor. Find
In the Edit Block Definition dialog box, select the block whose grips you want to modify
In the Block Editor drawing area, select a parameter icon.
On the Properties palette, under Misc, click Number of Grips, and then select the number of grips you want to display for the parameter.
Click Block Editor tab Open/Save panel Save Block. Find
(Optional) If you are finished using the Block Editor, click Close Block Editor.