create tool and under tooltype select browse and select your file
after this whenever you want to select a new tool under tooltype you'll have your tools
I am not sure what you mean by "load as template" but here are some guesses based on your part and pictures:
You can use the part as a template in the create tool dialog by browsing for it.
If you want to use a palette, the part must be a setup template in the setup library. If you use cam_library configuration, do you see the template in the tree list? If so, then you can add the library class as a palette.