It may not be exactly what you're looking for but have you looked at the "Metrics Report" under the "Reports" dropdown?
=G=
From: Xymon <xymon-bounces at xymon.com> on behalf of Steve Brown <user-a23886790dfc@xymon.invalid>
Sent: Friday, December 5, 2014 10:19 AM
To: xymon at xymon.com
Subject: [Xymon] One trend page for more than one host
Hi,
Is there a way to show the trends for more than one host on one page?
I have 2 Linux hosts that support 1 application. I'd like to be able to view the cpu (for example) for both of them together on one page.
The trends column for each host shows all of the graphs for that host, I would like to be able to view these 2 at the same time without having to flip between browser tabs.
Thanks
Steve