I'm pretty sure that one is already there.
https://xymonserveraddress/red.html
You just need to modify the xyonmenu.cfg file to add it into the menu.
Thanks,
JT
From: Alessandro Tinivelli <user-fdda70e8b835@xymon.invalid>
To: "xymon at xymon.com" <xymon at xymon.com>
Date: 27/11/17 09:35
Subject: [Xymon] NFR: "All Red View"
Sent by: "Xymon" <xymon-bounces at xymon.com>
Hi all,
the longer I’m working with Xymon, the better i find it. And it’s more
than 10 years, I guess J
I would love to find another view, in the style of the “all non green
view”: the “all red view”.
It’d be really useful, in my opinion.
Just my 2 cents ;)
Best regards
Alessandro Tinivelli