How to activate linking to JIRA issues

Question

I've seed in some JIRA projects that from the board or even the backlog, each issue created, you can click directly on it (link) to go to the actual issue.

In my case, when I see the board or backlog, I'm obligated to click on the issue then, in the appearing div on the right which shows the issue in more detail, you can see a link at the top to go to the issue, where can i configure this ?

As you can see, the issue key is not visible in each card, thus, no direct link to the issue. I first have to click on card, then in opening panel I see the issue key/link which I can then click. This is really annoying and time consuming.

The is the possibility to add 3 more fields to the cards; I tried in board settings >> card layout but no issue key is available.

Edit

Expected result:

Answer 1

Your links are there, it's just that they're shy and thus greyed-out:

You can Ctrl-click or middle-click the issue ID on the right, and the issue will open in a new tab.

Answer 2

I believe what you need to check and Configure is "Issue Details View" of the board. Take a look at https://confluence.atlassian.com/agile/jira-agile-user-s-guide/configuring-a-board/configuring-the-issue-detail-view