Sorry I just had to post this dumb “tip” as it’s one of those things that’s simple when you see it but I only just realised that when you’re adding columns to a layout that you can choose to add to the right ! 
lol
Up until 5 minutes ago I’ve always just clicked the top button and then been annoyed I’ve had to drag the column across the page !
It’s probably just me but I thought I’d share just in case there is another numpty out there.