Use the 'gen_key' command to open the gen key dialogue. Type in your alphabet of characters (use any you may use while typing, unrecognized characters will not be encoded) and you will see a key appear in the next line. Copy it to your clipboard and save somewhere, you will need it later. Also, send it to any friend who you would like to be able to decode your encoded text later. Then type in the 'encode' command. First, paste in your code and press enter. Then, type in the text you would like to encode. It should produce an encoded version of the text on the line below. Anyone who has the encoded text and the key can decode it using the 'decode' command. Simply type in the command, paste in the key, press enter, then paste in the encoded text. If the key used to encode the text and the key used to decode it are the same, the decoded text should appear on the line below.
Use this to send encrypted to your friends without others being able to understand them. Use the 'exit' command for a stylish exit. Inspired by the Enigma device used in WW2 to send encrypted messages, you will even notice similarities if you look at the names of the variables used (R stands for rotor and T stands for turnover).
