To be able to make/edit presets on the Microbrute, all editable parameters would have to have digital control. Doing so would most likely add a considerable amount of cost in R&D and manufacturing that would then have to be passed down to the consumer. They could've done it and charged more for the Microbrute, or, stripped a lot of the current Microbrute functionality to add presets/editing via USB without increasing the retail price.