Using M+R
Before using M+R, you must invoke it and complete the following tasks:
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Select one of the four M+R tools. 
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Set up your profile (see Setting Your Profile on the Profile panel(s). 
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Define your base and derivative files (see Defining Versions) on the Version panel(s). 
This chapter gives a brief description of the Merge+Reconcile primary menu, the online Tutorial, and suggestions on how to select an appropriate M+R tool and how to choose base vs. derivative versions. It includes the following sections: