Setting Size of cutout

[Crawdaddy]

How do you set the size of the cutout you want? Is there a way to just enter the size you want without sizing it with the mouse? I am using Plasma Cam software.

[plasmapunk]

Could you elaborate?
You can use the scale command. (S) on the key board. Draw a 1" circle then click it to make it green and press "S" then set the base point you want to scale from by clicking the mouse on the screen where you want it to scale from. Then you can either use the mouse to drag it to size or type a scale factor if you put in a factor of 2 it will then be a 2" circle if you put in a factor of .5 it will be a 1/2" circle.