Scroll sideways on ipad

Hi,
How does one scroll sideways to view an outline on the iPad?

Ive created an outline on the mac only to discover all the columns are hidden off to the side on the iPad.

Im probably missing something quite simple but i can’t see any scroll bars.

Cheers
Kiran

Swipe sideways in the second column. You may need to resize the first column in order to see any additional columns.

Brilliant, thanks!