Move to Prime tower before switching Nozle

[tphan 0]

Sorry If this request is redundancy.  I But I think this is such an easy fix for Cura.

I have dual head printer.  Mo notice is that when switching print head.  The nozzle lifted up and wait for the other nozzle to head up.

 Now that make the nozzle to leak out on to the print.  I suggest:

 1./ Move the nozzle to the prime tower first the do the switching there

2./ Move to some empty area.  It also good Idea to allow user enter the coordinate of the switching nozzle position

For now I have to edit the Gcode ( more than a million lines) manually.  This is cost me a lot of time and a boring thing to do

Thanks

Tphan