I'm running SU Pro8 on Mac. I sent a SU scene to Layout, resized the sheet to 11x17, went to style box to change scale to 1/4", made selection, all successfully. But when I try to grab the blue outline box to scale drawing to fit the paper size, the drag grips don't catch and then blue outline box starts disappearing from the corner I tried to grab. Very weird / any suggestions out there? / thanks