Hello @CharlieGreene7827
With switch you can change the geometry based on a condition taken from the input parameters, this parameter can be previously defined through the define enumeration (it will enable a new type of input/output parameter) or through a string input parameter.
I'll explain the first option.
1. View tab -> Define Enumeration
2. Create a group in the list on the left, and selected the group add items (they will be the options for the exchange) in the table on the right.
3. Once you finish the definition, accept and close the dialog box.
4. In the Input/output parameters tab, create a new parameter, and in the type column, select the name of the group created in step 2. In the default value column, you will have a dropdown list with the assigned items.
5. Insert the switch, select it and in expression assign the name of the input parameter followed by the API function "Value" (GroupName.Value).
6. Create the necessary geometry. And from the switch stretch the flow arrow to the geometry.
7. Selecting an arrow that starts from switch in the properties, deselect IsDefaultCase and in the Case row assign the name of an element from the list.
8. Repeat steps 6 and 7 for all cases.
I attach a simple example.
Regards.