Making changes to a pre-built bucket is easy to do.  The steps are very similar to editing your own buckets.  

Step 1: Click on the Content Dashboard from the sidebar. 

 

Step 2: Choose to either Create a Bucket or add it to an existing bucket.  

(preserve scheduling applies to date based buckets- like holidays.  If the bucket you have selected isn’t date-based, select ignore scheduling.

Step 3: Once the images have been put into a bucket you can select edit to make changes to the caption, or you can choose to delete the post all together by selecting delete.