This widget displays the standard slider widget and adds a collection of buttons below the slider. The buttons are generated from a CSV list.
I am using this widget for dimmers to provide full range control using the slider and quick access to commonly used levels with the presets. Before creating this, I was grouping standard slider and button widgets as shown in the right of the screenshot below. The left and bottom of the screenshot show a couple example configurations of the widget.
The CSV list can be just the values which will be used for the button text and the value written to the item as shown in the bottom of the screenshot. CSV: 0,25,50,75,100
The CSV list can also contain value/text mappings as shown in the left of the screenshot. CSV: 0=Off,50=Half,100=Full
The widget is available from GitHub: