This trigger allows you to set a percentage of how far down a visitor must scroll before the SleekBox* appears.
You can set your SleeBox to appear at any percentage within the interval of 0-100.
Do note, that 50% is half-way down the page, whereas 100% is the bottom of the page. Setting the percentage at 0% implies that the SleekBox is shown immediately when the page is loaded.
*Note that a SleekBar will appear instantly and therefore this option is not available on a Sleekbar