How can I create a new custom tool?

If you need to create a new tool that is not one of the standard types, you would create it as a Form Tool. With this feature you can match any router bit that does not have an undercut, such as dovetail bits and Keyhole bits. 

You can find a detailed description in the Help Contents / Reference Manual and a How-To article at the link below.

Click here for a step-by-step procedure.