No you only need to this changes once.
You only open 1 chart. Change it to your liking. Save the configuration. Close PRT – save config on exit.
The next time you open PRT any new chart will have the same properties.
There is option to create multiple templates.
To make another template that will differ from the one you have you close all aother charts and configure a chart but this time with s different layout.
From the Menu – file – save as. Now save this template with a different name.
Save on exit.
Now the next time yuou open PRT you will see from the Menu – file – your 2 templates are there.
Now you just select which temaplate/layout you want to work on or switch between them.