Hello

I've spent some time with layout builder. Also by being SP Page Builder user for quite some time,
I've found that some features would be very handy here as well:

- Ability to clone items and rows. Add clone icon just before trash icon.
This would save a lot of clicks when creating more complex structure.

- Ability to collapse and expand rows, with option to remember expanded or collapsed state after saving.
This would save a lot of vertical scrolling and clicking when creating more complex structure.
Each row takes a lot of vertical space and collapsing finished rows would help to focus on current row.

Thanks
Best Regards