On a project page, drag one or more files straight from your desktop onto any Client Task or Team Task row and they attach to that task instantly. No need to open the task or click Add Attachment first. The row highlights while you are dragging so you always know where the files are going to land.
Drag files onto a task
Open the project that has the task you want to attach to.
Find the task row in the project's task list.
Select one or more files on your desktop and drag them over the row. The row turns a lighter gray to confirm it is the drop target.
Release to drop the files. The attachments upload to that task without the task being opened.
When drag-and-drop is unavailable
Drag-and-drop is disabled on a task row in 2 situations:
You are in Bulk Edit Mode on the project. Exit bulk edit (close the bulk action bar) to re-enable drag-and-drop.
The "project" is actually a template. Templates do not allow drag and drop of attachments. Open a project that was created from the template instead.