Display 3 different items at a time from a data set?

I dont got it. How does the |1 and |2 adjust the data to display?

My current goal is to view all datas in dataset in one region (if this is possible), one line text for each item, as much items as available.

Where is the format [col|2] documented? How does displaying all items from dataset for datasets without effect work exactly?

Reagrds,

EDIT: Got it. Dataset Tickers repeat the WHOLE TEMPLATE for every item. Also, it is necessary to use the Dropdown for the column-names. This generated something like [col|12]. Together with “No effect”, displays ALL elements.