nongreen - extra column for 'status unchanged'?

Good day one and all,

A colleague of mine suggested an extra column for the non-green page, one which shows 'time status unchanged' for an alert.

I've searched the archive and will try to get something working myself, but to prevent myself from having to re-invent the wheel, I thought I'd ask if anyone here has an implementation already they can share?

Kind regards,

Joost Hillen
System Administrator
Draads bv