There is an automatic filament “Unload” button on the interface for single reel users. Please add a filament “Load” button as well. It may possibly incorporate a filament type selection to establish a basic hot-end temperature, then heat the nozzle and run a purge cycle to set up the filament. May also include a from-to feature to get the correct “balanced” temperature to purge one type of filament and load another. Now it is just temperature guesswork and be VERY careful not to advance the extruder on a cold nozzle.
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Yes, this feature is in planned.