The Add Lines component supports pagination. By default, it displays 100 rows on each page. You can change that default value.
Change number of lines on each page
- Select Setup at the top right corner of the Add Lines list, then select Edit Page.
- In the Lightning App builder, select the Add Lines tab.
- Select the Add Lines component in its placement on the Lighting record page for your header object (Contract/Deal/Price Lookup).
- In the Per Page Number of Rows field, enter a value for the number of rows you want to display on the component.
- Select Save.
- Select Back to exit the Lightning App builder.