Client Reports Pro - Schedule for quarterly

Hello! I've read that there used to be an option to send out the client reports (recurring) quarterly. I realize that this option is no longer available (if it was indeed available before). I have about 30 clients that have quarterly website maintenance and currently, I'm having to do these manually because the only options are monthly or yearly (there could be other ones in there but I know there is not an option for quarterly). I would love to be able to have these set up for quarterly but then I go through and approve before they get sent out.