The only configuration of the Announcement banner is if its private or public.
You cannot automate it to appear one day and not other, at least not with Jira.
In the announcement banner you can place little js scripts, and also html
(Be so carefull to close all html tags)
Sorry not to be of much help, maybe other member can help you better.
Thanks Adria for informative suggestion !!
Currently I am trying two different approaches :-
1. Writing groovy script which will add automatic announcement banner to jira.
Let's Hope for expected result ! Thanks :)
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events