To pause a One-Time Queue or Repeating Queue, start by going to your Campaign List view.
Find the queue you would like to pause. A small green clock icon denotes active queues. You can also filter to view only your queues, by clicking the Show only Queues button in the top-right of the Campaign List view.
Click on a running queue from the Campaign List view.
You will now be able to see all the posts in the campaign. Press the Pause icon in the top-right corner to pause the entire campaign.
Pausing Individual Posts in a Queue
Navigate to the Campaign List view.
Click on the queue you would like to pause.
You will then be able to see all the posts in the campaign. To pause these posts individually, just click Pause on the posts you wish to pause..