Point Display Size

Is there any way to set the display size of a point object? I would like to set the size of a point to display as the tolerance to make it clear when things are outside the tolerance range,

Individual point objects? No. All point sizes are the same in a given display mode. The size is determined by the value set in Preferences>Display modes>*DisplayModeName>Objects>Points

If you need something different, you may need to use filled circles or dot objects…

I could do it globally. What is the size measured in?