Description of the need

It would be useful to be able to export a flexible layout template to a template file (i.e. layout-name.tpl.php) or at least code that can be copied and pasted into a file.

Proposed solution

A button on the flexible layout template to export to file.

GitHub Link: 
https://github.com/backdrop/backdrop-issues/issues/5045
GitHub Issue #: 
5045