.A machining sequence is a set of machining information for an EdgeCAM part. Depending on the environment, it specifies the:
machine tool (the Code Generator to be used to provide machining commands and to create CNC code from the instruction list)
machine datum for the machine tool
axis system being used
turret configurations
machine tool specific functions available (M-Function category commands)
units to be used in the CNC output
sequential list of machining instructions and/or operations.
If a part has been saved, the default sequence is the sequence in use when the part was saved. This sequence is used for the part at the start of a new Manufacture session.
A new sequence can be defined at any time in Manufacture using the command
New Sequence (File menu) .
An existing sequence can be selected using the command Select Sequence
(File menu) 
.
Parts can contain multiple sequences, for example two milling operations on the same model. Also, more than one discipline (mill, inspection, turning, and so on) can be used with the same model.
If you have to physically move the workpiece from one setup to another, you should consider using separate sequences, as the output will be for machine tools used in that setup.
If the part is complex, the redraw time may get quite long, so you may want to break it down. However, you must then merge the files together with an editor (the EdgeCAM Editor is recommended).