As an admin, when I'm testing out new workflows or other things within RM or Smartsheet, I want to know exactly what users will experience with different permissions and access levels. Right now Smartsheet/RM do not offer this feature, but it would be helpful. I have used this feature in Workfront - link to more information:
As a former Adobe Workfront administrator, I also miss this functionality that enabled technical support. I just logged in to see if this was already entered in the Community. Up-voting now!