Is there a way to scroll the table once it reaches the top?

[r-e-i]

I noticed that when using keyboard navigation, the table is able to down automatically once the selected cell reach the bottom of the table (displaying all the remaining rows), but unable to scroll when the selected cell reach the top (see the screenshot)

Is there a way to programmatically scroll the table?

Another thing, is there a way to remove the black border (as shown on the screenshot) ?
NOTE: I'm following the Keyboard Navigation example, https://komarovalexander.github.io/ka-table/#/keyboard-navigation