Adding an LEP element to a DTD

Hi!

This might be a simple question, but I can't seem to find the answer.  I need to add an LEP element  to my DTD.  I have tried several time to add it into the DTD, but after I re-complie the DTD nothing is in the element list. I am looking to add it within the para tag

I would really appreciate some help on this question. I

Thanks

Jay