Inqcipher is a python implementation of the inqcipher wheel, or the mexican army cipher wheel. It can be configured to use a custom charset, and even more than just 4 "levels" (in the original mexican army cipher wheel, there are only 4 possible ways of encoding a single character on the charset).
There's also a command line wrapper to the functions in inqcipher.py. You can find it at main.py.
You can set your own charset and configure how many levels to use in config.json.