we are currently not planning to offer font size settings in the CGA and/or python editor(please let us know in case you have something different in mind with "zoom window". We assume that that the scale factors in display settings on OS level offer sufficient control for most of our user base.
You can change the font size though unless I misunderstood the question. I do it all the time for when conducting training sessions! Right-click on CGA editor window and select 'Preferences', then in dialog box click on the 'Colors and fonts' text at the bottom. In the Colors and Fonts settings click on the list text that says 'Text font' and then on the top-right of this dialog click edit, here you can change font (great for when you can't tell between 1 and l) as well as size. Then click Apply and Close..
What would be good though is to not have to jump through so many dialogs...
