How do I scroll down a table on a page?

[pbanyard]

Hi
I have a page with 2 tables on it. The first table shows 3 rows and the rest are hidden (see image). How do I get Taiko to scroll this table up/down so I can see the hidden rows at the bottom of the table? scrollDown/scrollUp will select the whole table and try and scroll it but I need to access the scroll bar. I can see that the table has a div called outerTable ScrollArea but can't work out how to select this.

Thanks
Pete