Whittling down conversational view - Outlook 2013

Afternoon all :)

So I have this idea.

I get a LOT of email. What I thought would be a good idea is if I could have a button, so if I clicked it it deleted all emails apart from the most recent one. In fact conversational view is irrelevant, I'd want this to work whether it was that mode or not.

I started to hone some VB code, but lost it when I switched PCs. Has anyone done anythign like this before ?
I'm not looking for someone to code it for me, that would be lazy. Jus wondering if a) it can be done and b) has anyone done it before, which would save me re-inventing the wheel.

Answers on a postcard ....

Cheers all :)