Android Question Button added in the panel but it is not showing

[Makumbi]

Please help iam trying to add a button called Line2 in the panel but every time i add it it does not show wen i load my project yet in the design view it is there please help where could be the problem. I would like to position the button right after the button Line so that i have Bar, Line and Line2 buttons

 

[klaus]

You really need learn how to use B4X!
Learn what layouts are, what layout variants are and how to manage them etc.

This is the layout in portrait!
View attachment 90218
You see that the button is out of the screen!!!
You need to move it at the right place!

By the way, look carefully at the DisplayChart routine, it doesn't work correctly.
I leave it up to you to find what is missing.