The software part is still “terrible”… Most of the time are spending on hardware debugging and manufacturing, especially when we want to put the analog part into such small enclosure while maintaining its cost.
BenF’s firmware can’t be implemented directly since the hardware structure changes, we will prepare and publish the source file soon for user applications.
In current firmware, M is to memorize settings (while the cursor is on trigger menu) and F button is to save file under file menu.
Sorry for the inconvenience so far! We will consolidate the options and bring quad up straight:)