...
You can manage your Jira settings (e.g. your password, email address, or the format in which you would like to receive email notifications) in your user profile.
Your user profile also displays recent work in the Activity Stream, and contains useful shortcuts to issues you have been working on or reported.
...
...
Whether you're working on a Scrum or Kanban board, you can click on any issue to view it in more detail.
Displayed Issue details details are configured and customizable by your Board Administrator.
You must be a Jira administrator or a Board administrator for the board to modify its configuration. Any board user is able to view the board configuration.
Go to the desired board and select Board > Configure.
On the Board Configuration screen, select the desired tab (Columns, Swimlanes, etc).
Instructions how to Configure a Board can be found on the following Atlassian page: Configuring a board
You can find your board administrator via
Under General (left panel) > Administrators you can find the name(s) of your Team Board administrator(s). They are your first point of contact if you want anything changed on your Team Board.
...