What is a "colonne"? Is that like a colony, say the 13 Original Colonies & the Pilgrims and all?

Your first item, the full column, multiple columns has been done in CSS, but never in JS yet. It would be a great item to get incorporated provided the site admins comprehend how to set it up correctly.

# 2 is a custom item that someone can/will develop, but not all will want it. It's more of a feature enhancement than anything.

#3 we have all argued to no avail for a long time see more already.