Hosting tournaments is a tedious task where you have to switch between Move, No Move and NMPZ game modes, different maps for different modes as well as different settings (health, max round time, multiplier increases etc.). Adding presets makes this much quicker to do, and removes the risk of human error when setting up new settings several times. In addition, if you allow to export and import settings one tournament host can set up the settings beforehand and share the exported files to other hosts, so they just import them. Being able to select it from the main screen would also save unnecessary clicks. This will also be useful for other people hosting parties as well, not just 1v1 duels. The same principle will apply regardless of the party mode.