Add "Consider voting for one of these similar ideas" ability in Aha Ideas itself

When using a Ideas portal as I type an idea, a real-time search is performed that will present similar ideas, prompted with "Consider voting for one of these similar ideas". This is great. However when I add from within Ideas itself (not the Ideas portal), this doesn't occur. It would be great to implement this same capability so no matter where I submit the new idea, I get this ability.

We currently use the portal but only for internal folks at the moment. This caused some angst with commenting (folks would inadvertently use portal comments or internal comments, leading to concerns about visibility). We considered removing the portal until we consider opening it up to external organizations like customers and just have our folks operate within Ideas. But this would remove the "Consider voting for one of these similar ideas" capability.