I’m trying to create a multi-level group header in an Interactive Grid / Report.
The layout I’m aiming for would look something like this:

I’ve searched extensively online, but the only reference I could find was about Multi-level group headers in Interactive Grid / Report, without any clear working example or implementation steps.
Has anyone successfully implemented something like this in APEX (either natively or with JavaScript/CSS)?
If yes, could you share how you approached it?
Thanks in advance!
@john-snyders-oracle