If you want a particular style at all times, then the easiest change is to go to File > Preferencesf, select the Styles group, and then select the specific elements you want.
If you want a particular style only when capturing your results as part of a script, then you have to script the change to the preferences, journal the content, then change them back. You can find the necessary JSL if you select Help > Scripting Index and search on 'preference' Use the Help button to get more details and examples.