The app is designed to show sections of a layout, not an entire layout. Think Control Panel replacement... you can slide screens to show some continuity of a larger area, understanding that alignment is not going to be perfect. Realistically, a single screen should be sufficient to show what a physical control panel would typically look like.
To have created an all encompassing layout experience in the App would have been a never ending task, there would always be a need to update another radius or track part. And the ability to touch control items in a full layout presentation squished in such a small screen would not work well at all.
We did this mostly on our own time back in the day, a contribution to the Hobby. I have seen quite a few LCS users get deep into this and love it. But it isn’t for everyone, the hobby is enjoyed many ways.
For help, press the “i” in the top right of the screen, all the help is built in the App.