Here are a couple of ideas:
Delete the drum maps you do not use from "
Your user directory\AppData\Roaming\Cakewalk\
Your Version of SONAR\Drum Maps". If you wish, make a copy of the original drum map directory first. Keep in mind that the drum map directory is a copy of C:\ProgramData\Cakewalk\
Your Version of SONAR\Drum Maps" so there is always a way to get back the full complement of drum maps.
Once a drum map is selected and the drum synth is configured, save the drum setup as a project and/or track template.