Once you have done reviewing & reading you now need to sign off

Step 1: Once there select Sign Off 

Step 2: You can Add a Comment to the sign off here & once done select Sign Off

Additional comments are added in this area. If you add additional comments, they will need signed off by the customer

Or 

If the customer has setup further declarations or questions that need answered the box above will look like this below then select Sign off

Step 3: Once complete the status reverts to Signed Off. And you can see the renewal sign off beside it. 

Or 

If the customer has used the further declarations or questions the status will revert to Awaiting Sender Review

Step 4: Once this has been reviewed and signed off by the customer the status will revert to Signed Off as above