Hello, thanks for explanations, but I have 1 question about this block:

Note the Inputs tab — if the source wallet was used multiple times and has lots of transactions, we would have to manually specify only inputs we used in transaction we are going to replace (basically remove all other inputs and leave only the ones we need).If we have hundreds of inputs that might be quite a tedious work.

Inputs are gone after some time.. Does this technique work only for short period of time, after the initial transaction was sent? After an hour, for example, coinbin shows just 0 in inputs as they are already “spent”, tho transactions are not confirmed yet.