I’ve created a QSpice DLL symbol generator utility, QSymGen, to simplify generating large pin-count symbols. Simply create a text file defining the desired pin names, I/O direction, and (optionally) the associated nets. Run the QSymGen program and it generates a symbol file which you can use as is or further modify.
The tool is based on my QParser2 Project which supports reading/writing native QSpice schematic and symbol files.
You can find the QSymGen tool and complete QParser2 project code in the WIP (work in progress) folder on the dev branch of my GitHub QSpice repository.
Please let me know if you find issues or have suggestions for improvements.
–robert