You can convert from one visualization type to another by dragging a chart from the assets panel on the left-hand side onto the visualization that you want to convert.
All properties that the original visualization has are transferred to the new type. The new visualization uses the dimensions, measures, and settings that are applicable to that visualization type. If a visualization requires an additional primary dimension or measure, the first listed alternative dimension or measure is used by default. If no alternative dimensions or measures exist and one is required the new visualization, you will be prompted to add one.
All properties from the original visualization are saved, even if they are not available or visible in the new visualization. This means that properties can become available again if you decide to convert to yet another visualization type where those properties are used.
Do the following:
While editing a sheet, drag a new chart from the assets panel onto the visualization that you want to convert.
The shortcut menu opens.
Select the conversion option.
The new visualization is displayed, using the data from the original visualization.