Events in Apps PPL

[marcin1812]

Hi,
I would like to add some functionality to "Plot" App.
Prime allows me to expand apps. Yes!

So I want to add some new cursor functionality (for example zoom only in Y range by pressing "*", or select actual point - by pressing "enter" and add its coordinates to a list).
So I need to intercept key strokes in App Plot.

Question:
Is there some events to utilise (like for example "OnKeyDown"), or some Listeners (like in AndroidStudio)?

Another question:
- Moving cursor in Plot (left, right key) has very nice feature: long click, and cursor moves itself until key is released.
- I want to make something similar in PPL: In "Main Loop" i use ReadKey.
But ReadKey waiting for button click. If button is still pressed, Readkey stops flow.
Is there any workaround for this?

Regards