Adding a computer to collection when it's already a member of it, no warning

I’m using the version 2.5.6264.23824 of Right click tools. In the older versions, when you try to add a computer to a collection and that same computer was already a member of it, the tool gave a message “rule already exists”. In this latest version it just says "Added to ". Is it possible to have that “rule already exists” back?

Thanks for the feedback, I’ll look into adding it for the next release.