Hi Maya
What is your exact requirement?Can you please elaborate? Combobox is an interactive element in Xcelsius dashboard, using which users selects a value from an LOV and the selected value drives further activities - mainly filtering.
By input device - do you intend to type in a value manually?
With the standard functionality, you as a designer can provide a list of value and capture the selected value in a cell to use that as a filtering for other components or in formula.
Runali