Questions

Hi, I’m a software engineer. My organization is ready to purchase your solution for our project(Android, IOS), but I have some questions:
1. Can I get a callback when the visible area on the x axis changes? This is necessary to dynamically upload data to the end of the graph when the user scrolls back.
2. Change the position of the tooltip and place in the upper corner of the chart?
Thank you for your time and hope for further cooperation.
Evgeniy Grishko, software engineer.