Currently advisors are able to approve course requests through the 'Selection Order Save' task. You must have this task turned off for advisors to not be able to approve course requests for their advisees. The issue is that when this task is turned off, the advisor will not be able to request course requests. Please allow separate tasks so that advisors can request course requests for their advisees while also turning off the ability to approve or deny course requests for their advisees. With this task turned off, the course request selections will not save.