Hi
Here is 3 packages, that can allow you to easy start your favorite file manger as root.
The package will create icon to start file manager app as root. On the first start it will ask you to insert your root (dev mode) password. Afterward this icon will open file manager as root.
File Browser, CargoDock or Filetug apps should be installed on your device...
Good thing. So for root mode I can now refer to your tool.
I wouldn't get Cargo Dock into Store with root mode anyway.
Thanks for offering a solution to this!