Ship your panel arrangement alongside the rest of your reusable content.
A Content Pack can include your active layout. Anyone who adds the pack gets the same arrangement and the same data.
Pack your current layout
When creating a pack, choose Layouts as the category.
Turn on Panel Layout to include the layout you currently have active.
Bundling a layout with other content
To include Layouts with other content, choose the Bundles category instead of Layouts.
What recipients get
Adding the pack adds the packed layout directly into the recipient's saved layouts for that project. It shows up as a new tab in their layout strip, the same as one they'd created themselves. It isn't applied automatically, so it won't become their active arrangement until they switch to it.
For the full pack creation flow, see Create a Content Pack.