Telegram bot message within specific topic for groups

[lux]

created a separate thread:

Adding inline keyboard buttons to Telegram via API module

I’m reading the instructions here for " Reply markup - additional interface options" https://www.make.com/en/help/app/telegram-bot But not sure how to place the text within the API module. There’s a key and value but requires an array? [Screenshot 2023-03-16 at 10-25-53] This unfortunately generates the following error “The operation failed with an error. [400] Bad Request: can’t parse reply keyboard markup JSON object”