Pinned to Browser *and* scrollable as you scroll the window?

I’m making a big user-journey type diagram, and just wondered if it’s possible to:

  • Have a Pinned Header/Sidebar Dynamic Panel
  • that is itself scrollable as the user scrolls the page in general

Sort of like pinning rows/columns in Excel/Google Sheets … if you scroll the sheet you will also scroll along the pinned section.

Pinning the DP seems to instantly remove all scrolling, even if you set Scroll settings.

What I want is a pinned Header/Sidebar so I can scroll down/across the overall journey page, but the header/sidebar is pinned AND scrolls with the page.

Make sense?

I just can’t figure out if it’s possible.