The Hub - updating all plugins just for one site

I'm trying The Hub out and testing it on one of my sites. Is it possible to update all plugins at once just on one site? Or do I have to update them one by one in HUB vs going to site dashboard and updating all at once (defeats purpose of Hub)?

I do not want to use Update All from the top options - which I assume will Update All websites listed in The Hub. I prefer to go site by site.

Can I update All plugins at once on a site by site basis?