How to make a layered menu from inline buttons in PyTelegramBotApi?

Question

Python

Hello. I ran into a problem while developing the bot. The matter is that I do not know how it is possible to interact with callback.data from two different menus.
I have one with font selection markup, and with action selection. After receiving data from the keyboards, they need to be applied once. How can this be done?keyboard('cypher')keyboard('action')

@bot.message_handler(content_types=['text'])
def aaa(message):
    mtext = message.text
    chatid = message.chat.id
    global user
    user = User(chatid, mtext)
    bot.send_message(chatid, mtext, reply_markup=keyboard('cypher'))

@bot.callback_query_handler(func=lambda call: True)
def callback(call):
    cypher = Cypher()
    if call.data in ('caesar', 'affine', 'base64', 'atbash'):
        cypher.set_cypher(call.data)
        print("set cypher " + cypher.get_cypher())
    else:
        cypher.set_action(call.data)
        print("set action " + cypher.get_action())

    try:
        bot.edit_message_reply_markup(user.chatid, call.message.message_id, reply_markup=keyboard('action'))
        print('changed')
    except:
        pass

    try:
        if cypher.get_cypher() == 'base64':
            text = base64.encrypt(user.mtext) if cypher.get_action() == 'encode' else base64.decrypt(user.mtext)
        elif cypher.get_cypher() == 'atbash' and (cypher.get_action() == 'encode' or cypher.get_action() == 'decode'):
            text = atbash.do_atbash(user.mtext)
        bot.edit_message_text(chat_id=user.chatid, message_id=call.message.message_id, text=text)
    except:
        pass

As you can see, I'm trying to use classes, but the problems have become even more.
Thanks in advance for your reply