The Plugin has no dialog and parameters are not passed to it as far as I know. You use menu File>Automate>Crop and Straighten there are no parameters you can set. During its processing it must check to state of the Alt key after creating a new document. If the state is down the plugin terminates ends. One would need the source code fot the plugin to see if is possible to pass parameters. I think its highly unlikely. Plugins that take parameters normally do so be using a dialog. If the plugin has coded in action support the parameters are recorded into actions steps by the plug-in and these get passed to the Plug-in by the action when played and the Plug-in bypasses displaying its dialog unless the step's dialog is turned on.
What you show is part of a script that looks like X's Script ActionFileToJavascript created. Step 1 in your action used this function. As posted this would fail for sTID setting is missing. 'CropPhotosAuto0001' is not a method its a parameter that identifies the automate plugin CropPhotosAuto.8li the method is executeAction. Action manager code.
In you action you may be able add a stop message the would state Hold down the Alt and click play before the crop and straighten step.