Solutions on-line are dated and do not apply to version 18. This should be easy to intuit but I am not succeeding
Open the User Interface and follow these directions:
https://screencast-o-matic.com/screenshots/u/Lh/1524487226941-28528.png
https://screencast-o-matic.com/screenshots/u/Lh/1524487435801-39595.png
Thanks for your navigation.
You’re welcome.