Edit Jira Blueprint in Confluence

[Rachael Garbee]

I am trying to follow these instructions to edit the Static Template for the Jira Blueprint in Confluence. 

https://confluence.atlassian.com/doc/blueprints-323982376.html#Blueprints-CustomiseTemplate

However anytime I add any text to the blueprint, being extremely careful not to interfere with the existing macros, the page breaks and will no longer display the Jira issues associated with the static report. 

The instructions in the link make it seem like I should be able to add new headers and instructional text? But that doesn't seem to actually be the case. 

Thanks in advance!