Add parameters to existing families
![](https://www.bimfiretools.com/wp-content/uploads/2021/03/Vitt.png)
![](https://www.bimfiretools.com/wp-content/uploads/2021/12/1.png)
Select the compartmentation family, on the top under Modify tab, edit the family.
![](https://www.bimfiretools.com/wp-content/uploads/2021/12/2.png)
Go into Type properties under the create tab.
![](https://www.bimfiretools.com/wp-content/uploads/2021/12/3.png)
Add the new parameter. It is important that the stakeholder who desires a different parameter sends a Shared Parameter file so it is possible to add the specific parameter.
![](https://www.bimfiretools.com/wp-content/uploads/2021/12/4.png)
Select Shared Parameter,
Browse to the Shared Parameter file that have been sent with all parameters.
![](https://www.bimfiretools.com/wp-content/uploads/2021/06/add-parameters-5.png)
Select the parameter in the list and press ok.
![](https://www.bimfiretools.com/wp-content/uploads/2021/06/add-parameters-6.png)
Set these settings for the new parameter.
Select Instance, should be a text parameter, and should be grouped under Fire Protection
![](https://www.bimfiretools.com/wp-content/uploads/2021/06/add-parameters-7.png)
Now the parameter will appear under Fire Protection and will be blank. In the Formula column, just write “=FireReq_FireRatingWall”.
This will have identical values on both parameters.
Note: In this case the FireReq_FireRatingWall parameter is used, but in other cases it might be needed to manually enter values or use other BFT provided parameters.
![](https://www.bimfiretools.com/wp-content/uploads/2021/12/5.png)
Load the component into the active project.
Save the component, if necessary, in the project folder.
![](https://www.bimfiretools.com/wp-content/uploads/2021/12/6.png)
Overwrite the existing version.
![](https://www.bimfiretools.com/wp-content/uploads/2021/12/7.png)