I’ll try to explain it through steps.
- In your collection template create the 2 different layouts each one of them wrapped in a div called layout-1 and layout-2 or whatever you want them to be called.
- In your collection settings create a switch called ‘layout change’ or something similar
- Turn the switch on you just created for the blog posts you want different
- Select your layout-1 div and go to Conditional visibility, select the option ‘layout change’ and select ‘It’s on’
- Select your layout -2 div and do the same thing but now select ‘It’s off’
Once you’ve done this you have a changing layout collection depending if your switch is on or off for each blog post.
NOTE: You can do this with as many layouts as you want you will only going to need to create more conditional visibility rules in order to make it work.
I hope this make sense.