So the question is how to delete a transaction in Electrum, so that a new RBF type is sent to a mempul but with a higher Commission so that it is carried out faster than the first, but not as now to the same wallet, but to another one, let's say
if the original transaction is marked as replaceable (this is the default behaviour in electrum) then simply right clicking it and choosing increase fee, choosing a higher fee and then clicking ok and then sign and broadcast in the next window should do the trick.