ORCANOS system that controls the electronic signature process (CFR 21 Part 11) is managed by ORCANOS unique system specify under the Document Control system.
In case you wish to include a new user into one of your Routing Process you need to make sure that the user is part of the electronic signature ORCANOS system.
To include that user you will need to add the user to the Document Control project from the Admin->Projects->Document Control->User (tab)->Add (+ button)
Once the user was included in that project you will then be able to select that user from the routing process user selection list box.