Seeing Attachments

When an attachment is created, you see data to that effect on the geometry.
You can choose to clear this data from the geometry.  You can either select a specific attachment and suppress its representation, or you can select products and suppress all representations of attachments for that product.
In each case, select the object (the attachment or product), then click Hide Attachments.
To see the representations of attachments on the geometry, select the product and then click Show Attachments.