as i understand it , all patterns within a bank default to part 1 unless they have been otherwise linked.
so yes your suggestion would work if all the following patterns in the bank remain at their default…but it would also mean you would always have to finish your previous pattern on part 1 and save it.
you couldn’t for example save part 3 and move onto your next pattern that is at default or linked to part 2 .
what wascal is requesting is to have the option that your next pattern in the bank always defaults to the part last in use by the previous pattern, whatever that happens to be.