Hello Shannon Bishop,
I kinda doubt you’ll find a Structural Engineer that uses Envisioneer almost all engineers use Auto Cad. (i might be wrong maybe you could find one but i really doubt it)
But what you can do is find a structural engineer that will work with you and then print off a pdf of your plan and get him to red mark it with the neccesary changes and send it back to you to make the changes. And then after he is happy with it he will seal the drawing for you.
Conrad