How can I indent the Radio Buttons?

When you first create radio buttons your labels are auto-aligned so they will automatically be indented slightly by default unless you've changed that. This then means that the only other way to adjust it further would be to use the field and some custom injected css code to fix it more. 

If you are still having problems with it though, please provide us with a link to your form and we will do what we can to help you out more.