Assigning multiple roles gives a combination of the permissions associated with the roles.

Administrator + Any other roles

= create, view, modify, delete, assign, signoff and complete tasks

View Only Administrator + Observer

= view, signoff and complete tasks

Observer + Learner

= sign off and complete tasks

View Only Administrator + Learner

= view and complete tasks

View Only Administrator + Observer + Learner

= view, signoff and complete tasks