for example I want to change the size from 12pt to 6pt across all my measurements
Hi @Stu - I would select all measurements using CTRL + A on the document to gather all markups on the specific page (click inside the Markups List and then CTRL + A for markups across multiple pages). On the right side of the Properties Toolbar, you'll see Font Size and can adjust as needed.
I think you can select all measurements in the document via the markups list. Use the markup filter to group them all together for easier selection.
Thanks Luke