I have a huge dashboard file with 15 or so panels with loads of code added using the dashboard RAW mode GUI editor.
Much of the code is included multiple times, e.g menu button header grid and similar stuff that is identical on all pangel pages.
Since dashboard config files easily becomes huge, it is needed to be able to split a dashboard file into smaller files, that can be “included” from the parent dashboard config file. Since .storage/dashboards in JSON format shall not be edited manually, and the RAW dashboard GUI editor do not support multiple YAML files for one dashboard, some user-friendly GUI-level solution is needed to manage huge dashboard config files by splitting them into pieces.