Hi nos - here is a script which you can paste in as the command part on a shortcut key for that. When triggered, it will go through and select any objects which have the same name as one that is already currently selected.

script: /* Extend selection to same names */ var names = new Array(); var objs = moi.geometryDatabase.getSelectedObjects(); for ( var i = 0; i < objs.length; ++i ) { var obj = objs.item(i); if ( obj.name != '' ) names[obj.name] = true; } objs = moi.geometryDatabase.getObjects(); for ( var i = 0; i < objs.length; ++i ) { var obj = objs.item(i); if ( obj.name != '' && names[obj.name] ) obj.selected = true; }