Payment Plan Revenue Recognition

I am testing the Payment Plan Revenue Recognition process as my customer has a long spanding event where they are using a payment plan to issue monthly invoiced instalments and to recognise revenue as the time passes. 

Currently they are creating a manual journal but I know we have the Payment Plan Revenue recognition process that does this. 

The article says that the system will transfer invoiced amounts from deferred revenue to the revenue GL.

Upon testing, I have found that it seems to be transferring the entire payment plan ordered amount and recognizing this as revenue. I was only expecting to see $357,128.24 being reversed out as this is what has been invoiced in the payment plan.

The journal that was created has recognized the entire payment plan amount of $471,650.17 and reversed this out which includes amounts not yet invoiced.

Have I missed something in my steps?
1. Go to Event Deferred Revenue Recognition
2. Review the entries in the grid and select the items for recognize revenue. In this instance I selected one line that contained the payment plan for testing.
3. Right click > Tools > Recognize Revenue
4. Go to Journal Entries - Payment Plan Revenue Recognition 
5. Review journal

Further questions:

If we edit the journal before posting (first by unapproving, edit and re-approve), will this have any side effects in the system? 

The article also mentions that it should create a reversal in the next period but I don't see the reversing entry check box ticked for this - or will it create a different reversing journal?

Thanks in advance for your help.

Nicole Loh Pieter Du Plooy Ryan Ungerboeck