In the radio detail page, in addition to preset and active frequencies, the
MEM TUNE line shows data from the memories available in the MCDU:
memory location, station name and frequency.
When the cursor is on the MEM TUNE line, rotating the tuning knob cycles
through the 12 memory locations.
Pressing LSK 1L (prompted with the symbol) moves the frequency of the
selected memory location into the ACTIVE line. The previous active
frequency will be immediately transferred into the preset line.