Button configuration

When I configure the buttons as below:

  • buttons:
    • payload: Chinese title: Chinese
    • payload: Italian title: Italian
    • payload: American title: American
    • payload: Mexican title: Mexican
    • payload: South Indian title: South Indian
    • payload: North Indian title: North Indian

output appears as below:

  Buttons:                                                                                
  1: Chinese (Chinese)                                                                    
  2: Italian (Italian)                                                                    
  3:                                                                                      
  American (American)                                                                     
  4: Mexican (Mexican)                                                                    
  5: South Indian (South Indian)                                                          
  6: North Indian                                                                         
  (North Indian)  

How can we get the output to be displayed in the below format: Buttons:
1: Chinese
2: Italian
3: American
4: Mexican
5: South Indian
6: North Indian

Please advise.