Open the Primitives window (Window > Primitives).
Select Ellipse and click on the Place button.
In the tiny window that appears, click on the "..." button.
A dialog box will appear where you can enter the dimensions.

In FontLab Studio 5 the Primitives panel is called Smart Shapes. People didn't like the name Primitives :)

A.

Hey! I used the "Primitives" panel to add early hominids to my fonts!
Actually, I never used "Primitives". I'm glad that the name has changed to something better.

D'oh!

Thanks, Mark and Adam. I knew I was looking for primitives, but I guess when I am working at midnight, things tend to disappear off the menus! :)

Thanks again.

I never used "Primitives" even though I am one :-)

ChrisL

PS: It had nothing to do with the name. Smart Shapes is no better or worse a name.