How minesweeper work

[Slynky]

I would tend to disagree with both of you.

Though not necessarily useful, I suspect, assuming I understand its purpose correctly, it could provide the following use:

Let's suppose you do NOT want to turn off the "ships should avoid minefields" switch (in order to prevent a string of ships, for example, moving through the same minefield one after another). But, let's also suppose you have a fleet assembled with sweepers in it that you DO want to enter and sweep a minefield. Here is the use for the button.