you can move a component within outliner to another component by drag and drop, you can right click any item and use the corresponding menu too
To preform the order, one takes a component from its container (parent) and place it elsewhere, then move it back, this then places it at the “end” of its entities list
you will notice that a line appears during this action which helps facilitates its position on the outliner
I may have cause you some confusion, the actions all take place in outliner, the arrows in the pictures between the attribute dialog and outliner are there to match the component or group names, any discrepancies in these names and required correction are part of your organisation skills