Can we edit the default Poynt Apps?

Many of my products have a 2D Data Matrix, I have a number of questions regarding editing the Poynt system applications.

  • Can the default register app be edited in any way?
  • Can I edit the order items notes value to say contain the product expiry date for example - using the default register app?
  • Would this require using a webhook to grab an order item during a transaction? Then how would one get the data read from the data matrix?

Sorry for the large amount of questions here, I’m just trying to investigate how I might use this rather than create a custom app.