If you are using the NOtes client, then you can drag & drop the file into a rich text field.
If you are doing this from the web, then No, not without a lot of coding. You could create a java agent or servlet to do this but it’s a lot of work.
What is the problem with the file upload field? it can be formated with css, you can add multiple or with a little coding let the user uplad files one at a time.