In order to do this, you need to select the campaign that you would like to apply these conditions to. Under the "campagins" tab, select the drop down beside "view report" to the campaign you would like to apply these conditions to:

You will then be redirected to set the new segment. You will need to set a title, whether the subscribers "Have" or  "Have Not" met the action, and which action to base the segment off of:

Here are the three subscriber actions we allow you to segment on:

Once you create this segment, it will appear in your "Lists" tab. From there, you can create a new campaign based on this segment. 

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