I’m not sure if there was ever a traditional MIDI implementation chart, but all of the information can be found on page 45 of the user manual: https://s3.amazonaws.com/com.eventide.downloads/Product+Manuals/EclipseUserManual.pdf
The standard MIDI messages are already mapped by default (mod wheel = CC1, breath = CC2, etc.) but you can map any CC by selecting “MIDI single” and then choosing the CC number using the “CNTRL” parameter.
For example, I just set ext1 to use MIDI single > CC #43 and now any parameter that is controlled by ext1 will respond to MIDI CC #43.
Let me know if you are able to get it working.
