DataGrid ItemRender ID keeps changing

Watch what you offer, as I'll take you up on it :) I've got another situation involving data grids and I'm sure it's a similar solution, but I'm not quite sure how to get there.  I have a situation where I've got an AdvancedDataGrid object where I need to find a specific labelField value in one column (picture 1 in attachment) and then click on the adjoining checkbox in the next column (picture 2).  This grid is not ordered, so the value I'm looking for "Only take calls from people on my list" in the label field could potentially be anywhere.  Clicking the checkbox will pop a sub-list and I then need to do a couple of property checkpoints to verify that they're disabled (picture 3 along with checkpoint code from script conversion of visual recording).  Is this even possible?  Thanks.