When you are viewing the entire workspace by clicking on the 'Everything' or even 'All' items under a Space that has lot of folders, the list of the tasks grouped by Folder/List/Status can get very large if you have lot of items. This makes it difficult if you need to focus on certain sections while being in that view.
There is a 'Collapse group' option under the grouped list of tasks but it takes two clicks to Collapse each group and there is no Collapse all/Expand All option.
It will be greatly beneficial to have a one click expand/collapse button next to each Folder/List/Grouped Tasks as well as one Expand all/Collapse all button for the entire view.
It will save a lot of time for the people who need to keep a tab on multiple projects/lists from the common view yet need some more control on the view to manage the giant list of tasks better.