Due to some Architectural requirements, a user wants to add a different nosing profile or customized stair Trades. In the OpenBuildings Designer Connect edition there is a feature that will help you to achieve your requirement.
Place your PAZ file that you want to add as stair trade at this location, C:\ProgramData\Bentley\OpenBuildings CONNECT Edition\Configuration\Datasets\Your_DataSet\Frame\StairComponents Step-2
Open the ‘Place Stair’ dialog box after clicking on ‘Stair’ from Architectural Ribbon. From there click on the dropdown showing in the screenshot and select ‘Load Stair Setting’,
From the pop-up window click on ‘Treads’ and select ‘Parametric Profile’ from ‘Trade Type’,
Select the PAZ file from the list.
Then click on ‘OK’ and now you will be able to place customized stairs.