I have the Calendar App version 1.1.1. We are in the process of pulling down 1.1.5 for testing. We use the calendar to display Jira tickets for after hours call-ins. I have not found a solution where I can get the Jira ticket to populate the URL when a user clicks on the Jira ticket displayed on the calendar. The only values I can grab from the visualization and put into a token are _time and the epoch. I want to be able to redirect users to Jira and the specific Jira ticket number displayed in the calendar.
An alternative would be to use the existing epoch value given from the calendar drilldown and open a new search showing a table of tickets matching that _time value when the ticket is clicked and then have a second layer drilldown from the table to the URL, which would be very easy.
You can make that second table small and you can make it only conditionally visible using "depends="$token$" construct in your XML.
The calendar app does not support any kind of drilldown tokens other than the basic $click.*$ tokens. You'd have to modify the Javascript to be able to do that.
Depending on how your data is and the amount of data you need to show, you could look at two other apps that do support a lot of customisation, firstly the event timeline
https://splunkbase.splunk.com/app/4370
The author is an active developer. That type of view may or may not work for you.
The other is Number Set, again by a very active developer
https://splunkbase.splunk.com/app/6915
This is not specifically time based, but you can position the 'values' at fixed positions in a grid, so you could make it work, again depending on the volume of tickets you are talking about.