Invoice

Would it be possible to have the option of not actually emailing the invoice to the client? Or better yet, just make it visible in their portal? I don’t actually bill anyone (they all pay by card which is processes right away), but I I can’t seem bypass sending it. I do put ‘paid’ in the note now, because it has caused confusion in the past. What they really just want is the superbill, but I have to send an invoice first. Thank you!