With https://github.com/cockpit-project/cockpit-files/pull/509 we implement an editor to edit existing file but that doesn't allow users to create a new config file yet and edit it.

My current UI proposal would be:

Add a new button: "Create a new file", allow the user to enter a file name and the owner (similar) to the "Create directory" option.

After that, we touch the file and open the editor modal.

Alternative approach:

We directly open an editor modal, allow the user to change the filename there, that has two downsides:

• we need to show the owner/group option somewhere
• we need to ensure that the user doesn't overwrite an existing file when picking a filename.

The owner group candidates are based upon this existing code: https://github.com/cockpit-project/cockpit-files/blob/main/src/ownership.tsx#L9