You can highlight one variable name and then sort the others based how many databases each variable has in common with the highlighted one. This is great when you have one database in mind and want to see what other databases share the same variables. Frequently variables that contain the same type of data have different names in different databases. When you want to compare these variables, it is necessary that they have the same name. Below is the Variable View showing that Address1 is mapped to ADDR1 and Address2 is mapped to ADDR2 .
All mapping is accomplished with point and click.
Any number of variables can be mapped to any number of other variables. Any number of subsets can be created. Subsets can be further subsetted. Subsets are created by highlighting either database names or variable names. If you click on a variable name, all the databases containing that variable will be added to the subset.