How can I change the font size for the entities on a pathway?

There are two different ways that you can change the font size for all the entities at one time:

Advanced Scaling
1.  Select Advanced Scaling from the drop down menu in the far upper right (to the right of the “Fit All Entities to Window” button).
2.  In the Advanced Graph Scaling window, select the “Scale Entities Label” radio button.
3.  Move the scroll bar to the left or right to reduce or increase the size of the labels.

Style Sheets
1.  Select:  Style > Active Style Sheet > Manage Style Sheets, thn select the button “Create New Style”.
2.  In the new style sheet, select the desired font size in the Drawing Properties window.

For more information about managing style sheets, please refer to the Help documentation (select F1 to access the Help documentation).