Now it's possible to use different materials and qualities for each extruder, but nozzle size currently can be set only as profile hardcoded setting, cura currentlu don't support changing this option. For ultimaker printer it's done as list of all supported nozzles (0.4 and 0.6). Do we need to create list of all possible nozzle sizes(as ultimaker), or need to modify machine actions to set this parameters for each extruder?

The nozzle sizes for the future that we are planing to try are .25 .4 .5 .6 .8 and 1.2. We don't need to modify machine actions. The profile setting will work great.

Now it's possible to change nozzle size for each extruder from right menu in quality section. Check if we need to add smth else, and then I move this settings to other dual printers.