Creo Parametric can be configured in several ways.
The UI can be customized through a creo_parameteric_customization.ui file.
It also has a lot of configuration settings available through the config.pro configuration file
2D drawings and 3D annotations have additional configuration settings in the drawing setup file.
Note: these settings are stored in your drawing and models as well; the drawing setup options are added when the drawing or model is created.
Here you can find all the config.pro and drawing setup options you need.
Config.pro Options
Really ALL Creo config options (even the hidden options)
Check your Config.pro file
You can even upload your own config.pro or config.sup and perform various checks on them.
Drawing setup Options
The 2D drawing setup options