Hi @scottm,
MCUXpresso IDE can create a .csv file that displays all of the pins and their respective muxing options on an organized manner. To get this file:
1. Create a new project making sure you select the part number that you are using.
2. Open Pins Tool to create the .mex file.
3. For the an MCXA156 project, by default, ConfigTools will try to make the .mex file with the MCXA156VLL. Make sure to change the part number to VFT by clicking "Yes" on the following prompt:

4. Go to File > Export... > Pins Tool > Export the Pins in CSV.
The resulting file will show all of the pins and their respective pin muxing of that package, as well as the pins that you have routed on each Functional Group of Pins Tool.
BR,
Edwin.