Use HeaderAction to upload file in FileUpload.

Assume I have a fileupload component in a form on my page. By pressing a header action, is it possible to upload that file (to the specified disk)? Generally when you upload something, before you press create, that file is sitting in the livewire-tmp directory, and its only when you press "Create" that the file goes to its proper directory. In this case, we dont have a create action or a model.