Yes, you can edit a created text box even now! And also change its font style & size, individually.
Step 1: Just do a long-press on the text box in order to take it into the edit mode.
Once in the edit mode, long tap on the text and tap ‘Select’, After selecting text, you will be able to change font style & size only for the selected portions of text.
Note:We will be further enhancing the UI of the Text tool to make it on par or even better than the previous version.