Multi-Tab Feature would be more efficient that the current single-view option. For instance, if I'm in a list and realize I need to do a search, I leave my list and then have to come back to it. This can happen frequently and if I could just open another tab for searching or referencing another list, it would make things easier. If I add an item from the search tab to a list that is on a tab currently being viewed, a "refresh list" button would be nice.
Yes please ... this would be fantastic as I regularly move from 'my lists' to ordering and then elswhere and back. Three tabs would be great!