List of process to reattach is very short

![2014-12-05-16-13-57-messages - microsoft visual studio administrator](https://cloud.githubusercontent.com/assets/7780097/5318688/e88c5142-7c99-11e4-83dc-820223abb234.png)
At the moment there are only 4 latest used processes in the list to which I can attached to.
I'm working in different environments with loads of processes. I start loving this tool, but 4 latest items are far too less! Would it be possible to simply extend it to a list of latest 10?

Would really appreciate this change.