I know this is a somewhat weird question, but… Normally I select multiple things using the left mouse button. But sometimes this will switch and I have to use the middle mouse button from then on.
The question is: Where did I click or which key did I accidentally press to cause this? (I’m using a German keyboard layout, btw.)
Personally, I can live with both methods, I’d just love it to stay the same…
Thanks to you all