I've been trying to convert a number of programs from Series to One-Off Programs in the TV Guide. Is this possible?

When you go into 'Editing series' under the 'Episode List' is a line:

"Conversion will be activated when you click here."

on clicking it, it changes to:

"Click here to convert this series into a one-off program."

When clicked it then goes to a new (blank) page without any apparent effect on the Series.

Cheers
Jon