Affected versions: Rigel and later versions
Change deadlines for a single task
In order to change a single task's deadline, click on the 3 dots to the right of the task:
This drop-down will appear:
Then click on Change deadline(s), which will trigger this pop-up:
Your deadline has now been changed!
Change deadlines for multiple tasks
The only difference with a change of deadline for multiple tasks will be that you will press the change deadline button from the top bar, after having selected the desired tasks: