You can set the display format and size of points. Although mathematically points have no size, you can specify the display size.
When you use the Point command the appearance of the points depends on the settings for the point format.
To set the point format:
In the Options dialog box, the Drawings Settings page opens and Points expands.
All points in the drawing adopt the new format.
Access
Command: PointFormat
Menu: Format > Point Style
Ribbon: Home > Annotations > Point Style