Hello, and in this case, to add a new drum kit, you can open MixPad, click on Beat Maker and click on Edit Kits, click on New Kit and there you can set a new drum kit with the sounds you may want to use. Regarding the sounds for the drum kit, currently, NCH Software does not offer any other options than the sample that comes with the program. But you can find many options online for drum kit sounds that you can use in the program; just confirm that the files are audio files like wav or mp3 so the program can play them when creating the pattern.