Adding new router bits

How do I add my own bits to Easel Pro

Click the “Bit”-window, Click "Add a Bit"and enter your tool diameter and type.

I’m trying to add a 5/8" round nose 1/4" shank bit into the bit inventory, but the options seem quite limited. If I create a custom bit I only get these options:
Straight cut

None of which seem to reflect the actual bit type. How can I add this bit?

I want to use this to make juice grooves in cutting boards. Any help would be appreciated!