You will want to first start by clicking "Format" at the top of the screen. That will open a drop-down menu. From that menu, you then want to click "Analysis Techniques"
In 9.5
In 10.0
Next, from the "Format Analysis Techniques & Strategies" screen you want to left click and highlight the indicator you are wanting to use "ST_PhoenixFinder" and then left click "format"
Once you click format then another menu will open titled "Format Indicator: ST_PhoenixFinder" in this menu you will be able to change your symbols. After you have changed the symbols to your liking you can select "Ok" (FYI: IF YOU WANT TO LEAVE A SYMBOL BLANK YOU MUST PUT "" IN THE SYMBOL FIELD)
Related Links
About the Phoenix Finder
https://intercom.help/simpler-trading/en/articles/3169315
Phoenix Finder - Settings and Configuration
https://intercom.help/simpler-trading/en/articles/316899
How to read the Phoenix Finder
https://intercom.help/simpler-trading/en/articles/3231146
How to fix gaps on Phoenix Finder
https://intercom.help/simpler-trading/en/articles/321062
Phoenix Finder and Folio - How to set up Danielle's charts the easy way
https://intercom.help/simpler-trading/en/articles/347670
Watchlist - Phoenix Trend Strength watchlist code and shared links
https://intercom.help/simpler-trading/en/articles/315531
Phoenix Finder - Getting labels to display properly
https://intercom.help/simpler-trading/en/articles/347654
Watchlist - How to create a custom watchlist column in TOS
https://intercom.help/simpler-trading/en/articles/328454
Phoenix Finder - How do I change the way it shows on the chart?
https://intercom.help/simpler-trading/en/articles/346999