[ Thanks to Ramsai
for this link. ]
“Our new template has been created successfully. Now,
we need to add the associated graph templates and data queries.“To add a graph template, select your desired graph template
from the drop-down menu and click Add. Do it again and again to add
other graph templates. In this list, you will also see those graph
templates that you made yourself.“To add a data query, select it from drop-down menu and click
Add. Only add the queries you would normally want for that device
type.“After adding all the associated graph templates and data
queries, click on Save. The host template will be updated and you
will see it on the Host Template list. It’s ready for use on any
device.“You can also edit the listed host template to add or remove a
graph template and data query.”