Filament max speed depending on nozzle diameter

[GhostCuber69]

I would like to set filament_max_volumetric_speed depending on nozzle_diameter

At the moment I don't know how to do it or if it could be done.

I would like to request some custom code after the variables have been loaded but before slicing started.
This could be done for print, filament and printer settings in the notes tab.

Then something like could be done in the custom code
{if nozzle_diameter[0]==0.4}filament_max_volumetric_speed[0]=16{else}filament_max_volumetric_speed[0]=24{endif}