I have a need to create a table that adds the Opportunity Product Schedules by product. I have managed to get the schedules to show (finally), but I am only getting one product's schedules on my document. I also cannot get the name of the schedule to show up even when I tag it, the result is a blank cell. I've looked all over and haven't found any documentation to help with what I am trying to accomplish.  Does anyone have experience creating this type of document? 

I'm attaching an image of my tagged doc & my output (this is a poc so it's not pretty and disregard headers, I was just trying to get output and stopped updating them)

I really appreciate any help!