After wishing for years that Flash would automagically insert the name of a newly made MC as its instance, I finally grew antsy and make this little JSFL command:
if (fl.getDocumentDOM().selection.length > 0){
for(i in fl.getDocumentDOM().selection){
path = fl.getDocumentDOM().selection[i].libraryItem.name;
mc_name = path.substr(path.lastIndexOf(“/”)+1);
fl.trace(‘clip = ‘+mc_name);
fl.getDocumentDOM().selection[i].name = mc_name;}
}