FT-817 Interactive Frequency Reader - fast dial

One request I got while designing the I.F.R. was to allow a default value for 100/10/1 GHz and 100/10 MHz. This way a frequency can be entered with fewer keypresses.
Like a QSY to 10'368'367'0oo Hz would require to dial in only 8-3-6-7-0-# instead of 1-0-3-6-8-3-6-7-0-#.

This feature can now be (de)activated from the configuration mode, key C. It applies also to normal operations, when the transverter math is not used.