Hi,
Also try to open import .flp file, but does not work.
Project import allows you to add *.pmc components and other elements from third-party *.flp projects to your project
Импорт проекта позволяет добавлять в ваш проект компоненты *.pmc и другие элементы из сторонних проектов *.flp
I can only open and import pma files. But not an e.g. chat-app.flp file.
This work, but i get this message (android).
You did it wrong,as the error message tells you.so just put the Content of page 2 into a group and drag this group into your page 1.
Hmm, i try to import (Note) templates to my own project. 
Then maybe better start with the “…note Template” and add your new code to there.
Version 2.5 seems to work better, but still doesn’t get it right. How to set the display length on splash page?
I am sure you will find the answer with some searching within this forum or in the Tutorials and documentation. This is a good way to improve your learning curve on this platform. Other way one question would rise after another😊
You will notice that there are some differences between windows,ios and android apps in the behavior of the resolution and other things. Choose your device in the project settings should be first. Happy coding!