How to export uncommon page size?

I am working on a music book that requires me to create and export many 4x2" graphics files in tiff format. I spent a good long while to set this up but can’t figure out how to get anything but the pre-defined paper sizes. I added a custom paper-size in the System Print Setup but it does not show up anywhere. Looks like I have to do this one in Finale.

When you export graphics using the options on the right-hand side in Print mode, you will always get graphics exactly the same size as the page size defined in Layout Options, even if the print preview suggests that you will not.

Thanks, I’ll try that. Although, if I can’t see if my music snippet fits before I export it takes too long.

You should be able to see if it fits in Write mode or Engrave mode.