Asking to display loaded json file name

[MareroQPL]

The loaded configuration ("xyz.json") should always be displayed somewhere in the dialog.

[kamilburda]

I gave this some thought and I have an idea on how it could work.

When loading settings from a file, the file name would be permanently displayed at the bottom of the dialog (at the right edge, to the left where in-dialog messages are displayed). When you save settings by pressing ctrl+S or via Save Settings, you will save them to the file instead of the default location. This behavior would be optional, off by default and could be enabled under the Settings button. If you load settings from another file, a new filename is displayed, and saving via ctrl+S/Save Settings will save the settings to that file instead.

If this behavior is not enabled, settings will be saved to the default location and no file name will be displayed upon loading settings from a file.