Do you mean the View Issue screen? You want to be able to customise the order of your add-ons in the right hand sidebar?
Currently, I believe that is in the control of the add-ons themselves. They declare how high up the list they should be and Atlassian asks them to be good citizens.
You should raise an issue here to track this request: https://ecosystem.atlassian.net/projects/ACJIRA/issues
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