Possible to restrict viewing of alternate hierarchy parents?

Content

I assume the answer is no but I figured I ask.  I have a security setup like the following below.  Assuming a user has read access to "member1" I'd like to restrict them from seeing "Alt Entity".  If I apply "none" access to idesc of "Alt Entity" they still see  "Alt Entity" in SV member selection.  I'd prefer that they not see the alt entity parent at all 

Entity

----->Parent1

------------>member1

 

Alt Entity

---------> Alt parent1

---------------member1 (shared)