How to change retraction recover speed in UM2.1 Marlin?

[yyh1002 60]

With the UM2.1 firmware, the retraction speed setting in LCD menu only controls retract_feedrate. However, retract_recover_feedrate is constantly 25mm/s.

Because the retraction noise is very annoying and I sometime need to dial down the retraction speed to reduce the noise. It would be nice if the recover speed can be changed together with the setting.

Currently I slice gcode in CURA with reprap flavor to get same 17mm/s for retraction and recover, which result in a very quiet retraction action. But I prefer to slice in UltiGcode flavor if possible.

I wonder how to modify the firmware so the retraction recover speed can be changed together with retraction speed in the menu. I tried tweaking it but couldn't get it to work right.

Thanks

[yyh1002 60]

Well, problem solved.

In G11 definition, I replaced retract_recover_feedrate with retract_feedrate.