We only allow participants to submit proposals inside of proposal submission phase. However you can always submit directly from Participare backoffice interface, in order to allow you to submit proposals gathered in offline assemblies or received by other means (i.e. email, letter, flyer).
Participants can also only vote during the voting phase. As usual you can insert votes after that phase in order to account for offline votes. Search the knowledge base for offline votes.
If a registration is pending, its vote will also be pending, but it will be accounted for IF the registration and vote was made before voting phase ended.