It might be quite convenient, to have a list similar to the current events.php, where one can see, which events were not acknowledged yet. This is especially handy, when working together with a collegue, to see, which events are still open to be addressed.
This feature could be implemented in various ways, the simplest would be the duplication of the page. This can be tested easily on a Linux Zabbix 2.2.2 system using following commands:
cp -a – /usr/share/zabbix/events.php /usr/share/zabbix/events_unack.php
base64 -d <<BASE64-EOF | bzip2 -cd | patch -d / -p0
This will just create a duplicated page "events_unack.php" with the appropriate filter rule.
Of course it would be nicer, to have it together with the standard "events.php" e.g. having a checkbox "show unaknowledged only".
If this new feature would be found useful, please include at least the "tivial" version.