I have the need to create an app that is responsive to different screen size devices. is this possible within NSBasic/Appstudio.
There’s no magic wand for this: you have to do some work to determine how you want your app to look at difference screen sizes and make your controls react accordingly. There are a few articles in our blog to help you get started:
Share your story with the AppStudio Community! Quarantine Stories
I use % for the size of controls and containers.