Define Parameters
Use the Parameters tool to create, delete, and import/export parameters.
Create Parameters
Use the Parameters tool to create new parameters.
- 
                From the Flow ribbon, click the arrow next to the
                        Setup tool set, then select Parameters.
                
Figure 1. 
The Parameter Manager opens. - 
                Click 
 to create a new
                    parameter.
             - 
                Double-click the Name field to rename the parameter.
                Note: Do not use special characters or spaces when naming parameters.
 - 
                Double-click the Expression field and enter a value.
                You can define parameters as a constant value or as an expression of other parameters using operators like +, -, *, /, ^ (for power).
General math functions like Cos(x), Floor(x), Sqrt(x), ln(x), etc. are also supported.
Figure 2. 
 

Delete Parameters
Use the Parameters tool to delete existing parameters.
- 
                From the Flow ribbon, click the arrow next to the
                        Setup tool set, then select Parameters.
                
Figure 4. 
The Parameter Manager opens. - Select a parameter to delete.
 - 
                Click 
.
                Note: If the parameter is assigned anywhere, you will not be able to delete it. 
Import and Export Parameters
Use the Parameters tool to import and export parameter databases.
- 
                From the Flow ribbon, click the arrow next to the
                        Setup tool set, then select Parameters.
                
Figure 5. 
The Parameter Manager opens. - 
                Click 
 to import a parameter
                    database.
             - 
                Click 
 to export a parameter
                    database.