Getting things done in one screen: a queue of approvals, questions, documents and conversations on the left, the selected item's detail and actions on the right.
Layout idea
Tinted-column look from the Atlas reference: navy rail, a solid teal folder column with counts, a white list with checkboxes and an orange-edged selected row, then the detail pane with figures, Aura's note, documents, the thread and a context strip.
Where motion lives
The detail slides in when you select
Approve ticks the checkbox, folds the row, and the teal counts tick