code: def createCompoundFromChecked(self):
          
          checked_entries = self.checkedEntries()
          
          if len(checked_entries) <= 1:
              return QueryCompound()
          
          self.setUpdatesEnabled(False)
          joiner = self.currentJoiner()
          query = Query()
          for entry in checked_entries:
              if joiner == QueryCompound.Op.And:
                  query &= entry.query()
              else:
                  query |= entry.query()
          
          # clear out the existing containers
          first = checked_entries[0]
          first.setQuery(query)
          first.setChecked(False)
          
          layout = self._entryWidget.layout()
          for i in range(len(checked_entries) - 1, 0, -1):
              w = checked_entries[i]
              layout.takeAt(layout.indexOf(w))
              w.close()
          
          self.refreshEntries()
          self.setUpdatesEnabled(True)
          
          if not self.signalsBlocked():
              self.enterCompound(first, query)
docs: Creates a new compound query from the checked entry list.
          
          :return     <orb.QueryCompound>