How to scale all text contained in a box, not just visible text
I'm working with InDesign 2018 on a Mac trying to enlarge 70 threaded pages worth of formatted text (primarily 6 pt text with some 5 pt for notes) to 141.6% so it fills a larger page size with primarily 8.5 pt text (with 7.08 pt note text). I also want to preserve the leading which is a mixture of 5,6 and 8 pt.
I start by copying and pasting all the text into a single unthreaded box. Obviously, not all the text is visible. I grab the corner of the text box (for this example it shows 10 lines of type) while holding down command & shift and the visible text is enlarged. However, the unseen text for lines 11-up hasn't changed size. Performing this same function in Quark does enlarge all of the text in the box, both visible and beyond. I've tried to make this work on 2 different Macs and 2 other PCs.
Am I missing a setting somewhere?





