How Specify a custom directory (not well knows) to create a file

[Gildissimo]

I'd like to specify a custom inital directory to save a new file using the library, instead using well know directories...

llike...

var options = new SaveFilePickerOptionsStartInWellKnownDirectory() { SuggestedName = "PROVA.D01", StartIn = "C:\test"};
FileHandle = await FileSystemAccessService.ShowSaveFilePickerAsync(options);

[KristofferStrube]

Sadly that isn't possible for security reasons.