How to switch from 3 column pictures in gallery back to 2

[Lala1213]

How do I switch from 3 column pictures in a gallery's album back to 2? I accidently swiped out but can't swipe in to make it 2 again. I can press down on the pic and it shows me the 2 columns, but the second I life my finger it goes back to 3 columns again.

[Sonora · Accepted solution]

In your video you hold the picture,that's wrong way, because you marked all pictures this way. You must just tap the screen,  swipe to the right and lift your finger. To get rid of list folder must do opposite way- just tap the screen, swipe to the left and lift your finger