I'm not sure if this exactly what you need, but I found this in the online help:
To set options for all plug-ins in a folder
1.
Go to Edit > Preferences > File - VST Settings.
2.
Under VST Scan Folder(s), select the folder you want to set options for, then click the Folder Defaults button.
3.
In the dialog box that appears, choose from the following options (options that control properties for individual plug-ins are greyed-out: use the Cakewalk Plug-in Manager to set those options):
Enable as plug-in. Enable this option if you want to use the plug-ins in this folder as audio effects.
Configure as tempo-based effect. If the effects in this folder are supposed to respond to tempo information (for example, a tempo-synced delay), and they are not responding, make sure this box is checked.
Force stereo operation. If you need to use mono plug-ins in situations that requires stereo, you can enable this option to run the plug-ins in stereo mode. This option simply creates two identical output streams from the plug-ins where only one existed.
Do not intercept NRPNs. SONAR uses NRPNs to run automation of your VST plug-ins. However, some instruments have their own implementation of this process, so checking this box passes the NRPNs directly to the instrument, allowing it to manage its own automation.