1. Open the Telegram app or web version.
  2. Search for @BotFather in the search bar.

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  1. Start a chat with BotFather by clicking on the Start button.

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  1. Send /mybots command to BotFather.

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  1. Choose your bot from the list bot from the list and the Bot Settings option

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  1. Choose Menu Button option

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  1. Choose the Configure Menu Button option and send this URL (copied from your project) to set up the Menu button.

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Then, you can custom the button text. Ex: Play, Launch etc... or any title you want.