It mostly depends on your sender/controller. If it has support for a tool changing command, then add that to KM’s device definition and it will be inserted when tool changes are necessary. If not, you will have to export each operation separately (export as zip) and run them separately with manual tool changes. The way you do this is usually have some defined zero for X,Y (like top of stock at a corner) and when you need to change a tool, after the change, go to that location, touch the new tool to stock at that point and reset Z to 0. Your sender / controller will usually have a way to reset the X,Y, and Z independently or all at once. If not, there are gcode commands for that. Again, depends on your controller / firmware what those might be.
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