Is there a way to have difference task form(.ascx files) for each task in a SP Workflow Integration? 

I have one SharePoint Workflow Integration (SWI) user task already in the process, and that task uses Project_Process_Task.ascx file to generate task action form.

Then I add another SWI user task in the same process, and I check the check-box "Generate Workflow Pages" in advance mode.  After the wizard finishes, it overwrites my previous task form Project_Process_Task.ascx file. Instead it should create a new ascx file(Project_Process_Task_1.ascx).

Have any answers?