To edit your ads, head to the 'My campaigns' section, select the 'Ads' view and choose the ad or ads you wish to edit. Once selected, click on 'Actions' at the top of the table and select 'Edit ads'.
In this section, you can update the name of the ad and the associated pixel.
Please note that you're unable to edit/update the creative in Qwaya once published. If you want to edit the ad creative or the targeting you need to edit your templates in the Create Ads tab or in the Set Targeting tab and republish your ads to Facebook.