The good thing is Electrum have multiple change address feature (which is disabled by default), so you don't need to do it manually with "Pay to Many".
Sure it has, but there may be a need to make it manually. One example when it would be helpful is the dust on the change addresses that arose due to their bad management by the wallet (in fact wallet doesn’t pay attention to change addresses having a few satoshies). Left as it is it would stay in such state forever, virtually, but if you feed them with extra change they will be involved into turnover.