Repeater items not complete in Editor Mode

Hello, I made a repeater page connected to a dataset, but I wanted to add a different button to each picture. However, in Editor Mode it only shows 10 out of the 20 items, but in Preview it does show all of them. How can I see all of them in Editor Mode?

-You can set LIMITAION in DATASET-OPTIONS/PROPERTIES-PANEL.
-DATABASES (LIVE & PREVIEW are → SYNCED) ???