Thanks for adding this! It works great and feels like it belongs as the default :)

This is great! Does exactly what I need in Zen. 4 stars because the omnibox feature doesn't seem to work. The box recognizes the command and acts like it's going to create a tab, but then nothing happens.

Making dividers through the context menu is quick and efficient. Managing the dividers works just like any other tab. This is great for quickly and fluidly organizing things on the fly without needing to juggle additional workspaces. Love it!

Edit: Zen has updated and the omnibox feature now works as expected! I've updated my review to 5 stars.