In the rule “Sessions”, replace the text

The Speaker may not call a Session to order if a Session is already in progress. To call a Session to order the Speaker shall make a post to that effect, indicating which Future Agenda (from the ‘Agendas’ wiki page) the Session shall follow.

with

A Session may not be called to order if a Session is already in progress. To call a Session to order, the Speaker shall make a post to that effect, or an Honourable Member shall submit a Proposal to that effect, indicating which Future Agenda (from the ‘Agendas’ wiki page) the Session shall follow.