Further to my previous post, I can change the EBA on the stereo preset in the 861 using the function key and the remote but not in the Mconfig file? Is this an undocumented feature or user error?

861v6 ID41, HD621, G98, MC200, DSP7200, DSP7200HC, DSP5500 (rears), D2500; Oppo BDP83, PS3,
- Other rooms 3100, F80