remove a user from the "seen" list for outbounds

When testing my tour in the real world (as it often differs from the preview world) I can only follow this tour one time. With every edit I need to create a new user in my application (which follows a tedious creation procedure) before I can retest the tour. It would be nice to be able to reset the ‘seen’ status for a particular user (test user).
The suggested workarounds with copying tours seems a lot of efforts versus resetting the ‘seen’ status of a user. Thank you for considering this.