iOS Question Switch to landscape screen shows part does not scroll

Why should it scroll? You need to put the layout in a ScrollView if you want it to be scrollable.

You should start with planning how the layout should change in landscape mode.
The next step is to use anchors, designer script and maybe a landscape variant to implement the plan.

what i did on another page(a web page) was to make the background much larger in both directions,
then when it shifted to landscape you could scroll it as needed. So i thought there must be some
organized way to do this, with out trail and error method.