File Renaming and PDF Export Issues

File Renaming and PDF Export Issues

Using the Zoho Creator app on mobile, I need to rename draft files and export them as PDFs, then forward them to the LINE app.
1) Is it possible to set the file renaming as a variable (from the form's variables)? For example: Customer Name + Date.
2) After I export the selected report > View Type: Summary View (PDF), a blank page appears. How can I set it to be automatically deleted? (The first page is correct, but the second page is blank and redundant.)