Ermir,
That is a interesting feature and I can see how that would be useful to many more businesses. I am afraid that is beyond the features of our Ticketing Add Ons and would require some major customization to add it and we would not be able to help through our forums on that.
If you would like to request that feature please head to our UserVoice Page and add your own or upvote that feature as they will increase the chances of it being added to a future version.
http://tribe.uservoice.com/
Thanks