Hi Riley,
For #1 please paste below code in any of your theme’s JS file.
jQuery(document).ready(function() {
jQuery(window).scroll(function() {
if ( jQuery(window).scrollTop() > (jQuery(document).height() - 300)) {
jQuery('.wpsr-sharebar').hide();
}
else {
jQuery('.wpsr-sharebar').show();
}
});
});
For #2 in floating sharebar settings page, please click “Adjust position visually” button and use the visual editor to position the sharebar to the desired location.
Thanks,
Aakash