1x1 Pictures with full-width in 3 rows on mobile

Sadly, no not possible.

I've tried this many times myself but if you use columns in mail templates it always places this below each other on mobile. 

I think it would also affect the font size if it was kept side by side for whatever text you use. And plus, from a user perspective having to scroll sideways on mobile is just bad UX. So its probably better like this 

Thx for the reply. I probably wasn't clear. I understand that it is not possible to have several columns next to each other on mobile. 
What I want, is that the image is full-size like you can see on the mobile view for two columns. Here there is no padding and the image goes from corner to corner. 
When using 3 columns, in mobile the images get a padding, which I don't want to have.

Thx for the reply. I probably wasn't clear. I understand that it is not possible to have several columns next to each other on mobile. 
What I want, is that the image is full-size like you can see on the mobile view for two columns. Here there is no padding and the image goes from corner to corner. 
When using 3 columns, in mobile the images get a padding, which I don't want to have.

Have you tried editing the settings of the padding on that section? I don't have this issue myself, from what I can see. Maybe I am still misunderstanding your issue
I assume you have 1 image which is wide (landscape) and you have put two columns of text below it?