With sliders you can add a object where the user can change a number value.
Here are all possible functions available for sliders:
Remember slider also inherits from object
setSymbol
this will change the foreground symbol
parameters: char symbol
returns: self
setBackgroundSymbol
this will change the symbol background color
parameters: number color
returns: self
setSymbolColor
this will change the symbol color
parameters: number color
returns: self
setBarType
this will change the bar to vertical/horizontal (default is horizontal)
parameters: string value ("vertical", "horizontal"
returns: self