Add Circle/sphere options

Hi,

When a new circle ( or sphere etc) is added, at the bottom of the tool menu, options come up for the particular mesh added. In the case for a circle, number of Vertices, Radius and Fill type are options available. Once I click to a different view , these options disappear. How do I get back to these options ie, change the fill type or number of vertices, after they have disappeared from the tool menu?

Thanks
Rd

Once I click to a different view , these options disappear. How do I get back to these options ie, change the fill type or number of vertices, after they have disappeared from the tool menu?
There is no way

OH! ok
Thank you Richard.
Solved.