Steps to reproduce:

1. Set OS Linux template to a host
2. Check host screens and select "System performance"

Result:

The "System performance" screen is set to have 2 columns.

But for example "Disk space usage" is set to use max 3 columns.

This is causing graphs like CPU load etc. get out of screen, which reduces usability of the screen

Expected:
I expected the template setting to override the item setting if the template setting is smaller than the item setting.

See expected view: