Efficient Mapping Technique

If you have sample input and output files with same header level node names and structures(some of the field names can be different) . Then instead of doing individual drag and drop (can't use mass copy as these files are not 100% similair). You can use "Link by Node Name". This is how you do that:

1) Click on the MAP grid.

2) Go to properties box

3) Select "Auto Link By" : NODE NAME