If you set up a filter in a view, you can choose several options, like ‘today’ and ‘one week from now’
I mostly use table views for tasks, sorted on a date field (like deadline). I use the timeline view for entities with a start/end date, like projects.
I would love to use the calendar view for tasks as well, but the current calendar view is not helpful for tasks IMO.
I mostly work with projects, so I prioritize and schedule per project.
Manually, or I use a button to change multiple items at the same time. If I select tasks, I can click on that button for all tasks.
Then I change deadline for all of them at once.
You can create buttons via the automation screen.
Hope this helps! 
