So, you're just wanting to be able to monitor a single address and continually re-use it?
Why? It's bad for your privacy and the privacy of people you transact with (read the address re-use link above).In any case, using Electrum to monitor a single address is no different to opening Ledger Live and viewing your balance... does it really matter if your X BTC is spread across 5 different addresses?
Not only to monitor a single address but sometimes for verification purposes you need to prove that a particular address belongs to you so that's what I needed. But thanks for telling that the fee is not affected by having balance on different addresses so that would not be a problem now.