Currently the contacts page is very lacking in certain functionalities.
  1. Selectable columns to display on the contacts table.
  2. Resizable columns.
  3. Create contact segments with pre stored filters for quick selection of matching contacts.
  4. Bulk export contacts including the custom fields
Analytics:
  1. Able to track the number of sessions a user has.
  2. Top/Popular buttons with rankings etc.
  3. Top/Popular flows/blocks with rankings and number of clicks etc.
  4. Top/Popular URL s visited with ranking and number of clicks.