when a form is launched in the WorkSpace, there's a row of buttons (Reader) above the main form window, when I click the "Save" button, it pops up a save-to-file window filled with a default filename.
My question is: is there a way to change that default filename from my Application programmtically/dynamically? ie. a default filename that's based on some data on the form.
I don't think it is possible to change that file name.
That is correct. You cannot programmatically change that file name. You can change it when you save it locally.