You can use the Change Shape feature to change a Visio shape to any other Visio shape. This feature allows you to change a shape "on the fly" while working in Visio.
1/ On a Visio plan page, right-click a shape on the Visio page, right-click, and select D-Tools > Shape > Change Shape.
The Change Shape form will open.
2/ Choose whatever shape you want and then click Change.
At the bottom of the form, you have the option to assign this shape as the default shape for the product, category, and subcategory, if you wish.
You will need to resize and reposition the shape and reconnect any wires previously attached to the old shape.