Last updated: 15th Aug 2014 (Version 1.4)
Enabled: Easily lets you enable or disable the scroll top button on your website. No need to activate/deactivate the plugin.
Scroll Offset: Number of pixels to be scrolled before the button appears.
Button Size: Allows you to explicitly specify the width and height of the button. Setting these values to zero will auto fix the image/text.
Button Opacity: A percentage value defining the opacity of the button. When the user mouse over the button, it will be displayed with 100% opacity.
Button Fade Duration: Number of milliseconds the button will take to display/fade based on the scroll position, from zero opacity to specified button opacity.
Scroll Duration: Number of milliseconds the window will take to scroll back to the top from the current position.
Auto Hide: Auto hides the button after the specified number of seconds from the last scroll event.
Auto Hide After: Number of seconds to be waited before auto hiding the button.
Hide on Small Devices: Allows you to hide the button on small devices.
Small Device Max Width: The maximum width of a device to be considered as a small device. The above setting uses this value to find a small device.
Hide on Small Window: Allows you to hide the button on small windows.
Small Window Max Width: The maximum width of a window to be considered as a small window. The above setting uses this value to find a small window.
Hide on WP-ADMIN: Hides the button on wp-admin pages.
Hide on iframes: Hides the button when the page is loaded inside an iframe. (Ususally on popups.)
Button Style: Defines the button type to be used. An image or a text based button.
Image ALT: The ALT attribute for the button image.
Text: The text to be used on text based buttons.
Text Color: Text color of the text based button.
Background Color: Background color of the text based button.
Custom CSS: Modifies the styling of text button. Just define the CSS attributes here.
Location: The position of the button on web page.
Margin X: Margin of the button from the left or right edge of the window (based on location).
Margin Y: Margin of the button from the top or bottom edge of the window (based on location).
Display on Pages: Allows you to select the pages/posts where the button will be displayed.
Image: Select the image to be used for image button.
Custom URL: Absolute or relative URL to an image to be used as the image button. (Allows you to set any image you want)