Hi Temvez ,
Sorry, I'm not a good Dutch speaker yet, so I'll post in English.
Please take a look at examples in Tinker to see how to make payments programmatically: https://www.bunq.com/developer#block4
Choose the language that you like the most and try to run a payment script. Then you can modify the script according to your required logic and finally "go pro" (i. e. start working with real money).
If you have any questions in the process, feel free to ask them here.