To increase or decrease the size of markers on a JMP graph, follow these steps:
1. Right-click anywhere in a graph.
Press Ctrl and right-click to broadcast the command and apply it to all plots of the same type that are located in the same window. In a histogram, right-click the box plot area on the right.
2. Select Graph > Marker Size.
3. Select one of the marker sizes listed, or click Other to apply a custom size.
The default value, Preferred Size, is defined on the Graphs page in the JMP preferences.
Note: When the drawing speed is set to Fast, the smallest marker size (Dot) is applied. See Work with Crowded Markers.