New windows are awesome for utilizing trackpad shortcuts on either Mac or Windows. Especially when using multiple desktops as I use that to completely separate work.
Tabs would be a killer feature as well with a keyboard shortcut to navigate between from a different perspective. If I’m working on something where two lists are related, but not the same for sharing reasons or something then it would be nice to flip back and forth like I would in an IDE.
+1 for both