Suunto D6I manual Trox mode even during the no-fly time, Modify the gas mix accordingly

NOTE	It is not possible to change between AIR, NITROX and GAUGE
	modes before the instrument has counted down the no-fly time.
	There is one exception to this: You can change from AIR to NI-
	TROX mode even during the no-fly time.
	When planning both air and nitrox dives during the same dive
	series, you should set the instrument in NITROX mode and
	modify the gas mix accordingly.
	In GAUGE mode the no-fly time is always 48 hours.

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