Passing YAML parameters between Flex Dashboards


Has anyone had any success passing YAML parameters between Rmd Flex Dashboard documents? What I am trying to do is create a Main.Rmd document with links to others. The main document will exist for different users. If the user clicks on a link to open another Rmd, I would like the username passed to the next Rmd without the user needing to filter again.

Main.Rmd (filtered for UserA
url to : One.Rmd
url to : Two.Rmd
url to : Three.Rmd
If any of the links are clicked on, UserA from the YAML should be passed between.