Ability to alter the refresh rate or even pause

[WPsites]

This is a handy tool for diagnosing problems and identifying bottlenecks but when using it on a site that might be on a small server instance or shared host it would be nice to ease off on the number of requests sent to the server while the TimeStack interface is open.

I did look at adding this function myself but haven't used Knockout JS before and haven't really got time to read up on it right now so just thought I would mention it on here.