Is there a family online application for super visa (both parents)?

[mcrisla]

Im inviting both my parents to visit me and their grandchildren here in Toronto. Can they submit their super visa application online as one? Or should they apply separately using separate account (GKey)?

 

[Jalex23]

Im inviting both my parents to visit me and their grandchildren here in Toronto. Can they submit their super visa application online as one? Or should they apply separately using separate account (GKey)?

They can do both. A single application is preferred though.