Edit a Collection
To edit a collection. You will need to go the collection you want to edit. Example would be the staff collection.
To edit an item in collection you will want to go select the collection you want to edit an item from. This is located on the left side of the screen. You can then click on this to access your collection which will then so a list of all collection items.
Hit the Edit button on the collection etries you want to edit. If you can find the one your looking for it might be on another page which just go to the pagination at the bottom to go through it.
This will bring up the same screen as adding an entry but with content inside the fields. To get an understanding on how to change items or add new field types go to creating a collection