How to get the IssueKey in a Portal Request Side Panel app

[STI2D TERM]

Hi everyone,

I'm currently developping an application using the PortalRequestDetailPanel, and I need to get the issue key / id to get the values of some custom fields of the current page issue/request and display them in the side panel.

I've searched through everything but I can't find anything. I already tried to use useProductContext();

but unfortunately it's only available on the dashboard pages, and not the ones visible from the users.
So I'd like to know if there's any way to get this Issue Key / Id, of the current issue displayed, like maybe some script that I'll be able to use with the Custom UI, or something.

If you have any idea, please let me know.

Thank you.