Sony RM-AX4000 - Manual (Page 53)

Change the label of a component Editable Editable
Change the assignment of components Editable Editable
Change the preset code of a component *1 Editable Editable
Add a component *1*2 Editable Editable
Change the key/button setting for a component - Editable
Delete a component Editable Editable
Initialize the key/button setting for a component - Editable
*1 The Standard mode sets the preset code by "SOLUTION preset" (by reading the preset code from the remote control signal of your AV component).
The Advanced mode sets the preset code by "SOLUTION preset" or "BRAND preset " (by selecting the manufacturer and the preset code).
*2 Only in Advanced mode, can you select "None" for a component (that has no preset code).
Page 53