It is commonplace to receive requests to edit content on a live trigger. We currently handle this by creating 'test' and 'live' versions of mailings, and then manually port across to live once approved. This is open to error, and so would like to introduce a 'draft mode' to designer view, whereby changes can be made and tests sent without impacting the 'journey' version of the content. Upon approval, the content can then be committed to the journey version (perhaps with management / QC sign off required?)