Sure no problem. I didn’t even know what Google Apps Script was a week ago (and I’m never touching it again!).
We’ve isolated the important part that makes the sending of attachments work. As I said earlier, you’ll have to create a column called “Attachment” for the unique filenames of your attachments.
Further, we added an if statement so that if you want to use this code to send emails without attachments, it’ll still work.
Let me know if you have any other questions, or if you manage to make a more user friendly interface for Scheduling Emails. (Typing the date and time is prone to errors! I wish there was a way to click on a calendar)