sure to use the right terms?
a set cannot be decomposed in bodies. a multibody part yes. What are you talking about?
a distinct material is used in the axiemi, in the details a separate cut is used.
if you work correctly you do not need to do any Slave body nor, above all, divide.
made your part multibody with its distinct cut after which you can work in multiple ways:
-extrapolate each body by becoming a unique file (but connected to the father) by doing insert into the new part on the body concerned; this part may or may not be connected to the properties of the separate cut. the plates, however, must be remade but you can add functions to change it if you need to make a pre-work drawing
-doing the table after selecting the part click on body select. maintains all the features of the part from which it is taken and maintains sheet development. of course if there is no specific configuration the body is the final one and if it is necessary to add pre-work overmetal it is not possible