"There are no public AEL functions that allow to do that. For what purpose would you be using this?"
"You can do this from the UI by selecting the 'Layout' for the Momentum Simulation Control in the Momentum component Model parameter tab (you can reach the dialog where you do this by double-clicking on the Momentum component in schematic).This will force Momentum to use the settings that you have defined in the layout window when creating the component. When a linear frequency sweep was specified in layout (before the layout component was generated), that is what will be used when simulating from the schematic as well."
"Which version of ADS are you using?"
Retrieving data ...