Hi
We cannot edit the balloon text size on the default standard.
You may need to create a custom standard to edit the balloon text size.
Below are the steps:
1. Options>AM Standard tab
2. Under "Standard" enter a name and press enter>>Select the base standard
3. Click OK
4. Double click Balloon note>>Standard button>>Double click inside text combo box and start typing in the new size.>>OK
Hope this helps and let me know if you need more help.
Thanks,
Please select the Accept as Solution button if my post solves your issue or answers your question.
Sridhar Subramani
Senior Product Owner