If you’re using H90 Control and you’re in the Edit window, on the bottom there are four tabs, the last of which is called Preset Library. When you click on that, up top you can choose to work with Slot A or Slot B. The list shows you all the presets on the pedal and you can narrow it down by algorithm or effect type. As soon as you click on a preset, it will load it into the slot you’ve selected. Repeat this process for the other slot if you wish. Don’t forget to save.