About This File
This is a modification of comment's sample file found here: http://fmforums.com/forum/topic/71867-getting-more-out-of-filtered-portals-2view-selected-child/
This version uses custom functions to manage the selected values in a single global variable, and a calculated field/relationship instead of a filtered portal.
The goal was to provide access to the selected child via a relationship, and to define a default selection, if no child has been selected.
This should work with versions older than 11, but I didn't bother to test with any older versions of FileMaker.
