FFRend can display the parameters of only one plugin at a time, referred to as the selected plugin. Only the selected plugin's parameters can be edited; to edit the parameters of a different plugin, you must select it first, by left-clicking its tab.
For each of the selected plugin's parameters, FFRend displays a row in its main window. Each parameter row includes the following columns:
The remaining columns are used for automating parameters. Note that a plugin may not have any parameters, in which case no parameter rows will be displayed when that plugin is selected.