Raymarine Ray54E - Manual (Page 85)

Chapter 6: Menu Settings 75
6. Continue this process until all GROUP NAME characters have been
entered. Press and hold the
CH knob to accept the name and move on to
the
GROUP ID.
7. Use the same procedure to enter the
GROUP ID numbers.
8. Press and hold the
CH knob to accept.
9. Press the
CH knob one more time to save. The new entry appears in the
list.