You can assign a keyboard / MIDI / OSC / DMX ... control to trigger next preset. To do so, two option: enter the Edit keyboard Controls mode (Ctrl+SHIFT+K ou menu Controls / Edit Keyboard Controls) then at the top of the presets tab, you have three buttons appearing: previous, select & next. Click on the next button, then press a keyboard key, then this key will be assign to this control.
Second option: open Controls List dialog (menu Controls / Controls List), choose keyboard tab, press the "+" button then browse in the popup menu to presets/next. You can choose your keyboard key on the right by press the learn button and press a key.
If you want to automate, you have to use a timeline software at the moment. Ableton Live Intro (80€) is an option on Windows / macOS. There's a free soft called Timeliner made by vvvv that allows you creating a timeline with OSC (easy to use in MadMapper): https://vvvv.org/documentation/timelinersa