@wayneiles1
I did find a solution which works well. With the following folder structure and the JavaScript, the subgrids load into the proper subbfolders.
[Document Location]
|___> Ownership Documents
|___> Current Photos
var target1 = document.querySelector('#ownership_documents .sharepoint-loading');
var observer = new MutationObserver(function(mutations) {
$("#ownership_documents tr[data-foldername='Ownership Documents'] a").click();
});
observer.observe(target1, {attributes: true, childList: true, characterData: true});
var target2 = document.querySelector('#current_photos .sharepoint-loading');
var observer = new MutationObserver(function(mutations) {
$("#current_photos tr[data-foldername='Current Photos'] a").click();
});
observer.observe(target2, {attributes: true, childList: true, characterData: true});
Hope this helps.