Hostgroup overview add column

[thomasv-i]

Hello everyone,

we are using nagios core for a long time now and the number of host groups has started to grow significantly.
As of now there are only three host groups are displayed next to each other when you go to the host group overview.

Is it possible to change this to 4 host groups? There is plenty of space left and right to expand this.

Best regards,
Thomas