The Placement options within the Grow settings allow you to choose which side the widget displays on the screen: Bottom Right or Bottom Left.
The Horizontal Offset setting is the amount of pixels the widget appears from the left or right side of the screen.
The Vertical Offset setting is the amount of pixels the widget appears from the bottom of the screen.
You can experiment with these settings if you want to adjust the widget position slightly.
At the bottom of the Placement section, you'll see a disable widget code:
To disable the Grow widget on a particular page, copy the HTML code (in the gray box) and paste it into the HTML version of your blog post.
Keep in mind that this will disable ALL Grow widgets on the page (Spotlight Subscribe, Recommended Content, etc.).