Allows you to edit text associated with an object and display it in the viewport.
To change the program used to edit the text, choose Preferences > General Preferences and in the General section, provide the path and name to the text editor of your choice.
Create or edit text comments on an object
Pick the object you want to add a comment to.
Select the Edit Comment tool.
Type or edit the comment using the editor. You can type any text and use more than one line.
Save the file and exit the editor.