How to enforce users to enter a comment when using the snooze function?
In Geneos version GA4.10 and above, this option is available under the Commands folder in Gateway Setup Editor. This article also talks about an alternative method for older Geneos versions. Users can consider to configure a Gateway Rule to raise an alert with the Gateway Snooze Data plugin.
Geneos version GA4.10 and above In Gateway Setup Editor, users can go to the Commands folder and select the Advanced tab. There is an option named Require Snooze Comments (default is unchecked). 
Geneos version GA3.x, GA4.0 to 4.9 Users can enable the Gateway Snooze Data plugin, which will display the comment field as well as other details. Geneos - how to enforce users to enter a comment when using the snooze function? As an example, the following gateway rule would check if a “Manual” snooze type is being used, and if the comment is blank. The Gateway rule in XML file format has been attached.
if path "snooze_type" value like "Manual" and value like "" then severity warning else severity undefined endif
Path alias for “snooze_type”:
../cell[(@column="snoozeType")]