How can I make a circle of my TMA with 25nm radius?
The developer of the application published the usage guide of this application on its website as an online page. Go to the page, then click on the topics to see exactly how to create a circle within the simulation software. That's the only help you can get, because there is no other website available to use it as a guide for this request.
Help guide: https://www.acc.umu.se/~simsoft/tutindex.php