<p>I was really happy to see that the addlink has parameters that should be posted to the add form, so I read lots of different items and tried different things, including this </p> <p><a href="http://www.dnndev.com/learn/articles/detail/articleid/38/how-to-send-data-between-xmp-forms-and-templates">http://www.dnndev.com/learn/articles/detail/articleid/38/how-to-send-data-between-xmp-forms-and-templates</a><br> </p> <p>However, nothing I do seems to work. I cannot get the add form to have the default value of the foreign key that I am trying to POST to the add form as a parameter. Please give specific instructions, the article above dances around the answer toward the end, but doesn't show any code examples for retrieving the posted value. Having the idea helps, but knowing the exact syntax to implement it is important. </p>