[Can I specify when to use extruder resets (G92 E0)?]

You can't do that but the recent versions of Cura (3 onwards?) support relative extrusion for those printers that can use it. It's in the special modes section. The Ultimaker people can confirm this but, unfortunately, I do not think that their printers can cope with relative extrusion so if that's what you have it probably won't help.

 

Well that's perfect! I've been using 2.6.3, so I installed 3.1 and ticked the box for relative extrusion. Just what I needed, thank you!

[Can I specify when to use extruder resets (G92 E0)?]

I am creating a multi-color print with a single extruder machine.  To accomplish this design, I have four  "TYPE:SKIN" sections that I need to print in a second color.  Because I have only one extruder, I am making the color changes by manually inserting M600 codes in the G code. To reduce the number of manual changes from 8 to 2, I am manually moving blocks of G code to place all four TYPE:SKIN sections together.

Because the extruder values are not reset, I have to insert custom G92 E####.#### codes at the start of each moved section.  If there is an option to insert G92 E0 commands to reset the extruder axis at the start of each TYPE: section, then each section becomes portable and I won't have any extra work when moving them.

Is there an option to have Cura insert these extruder reset commands at the start of each section?