How to generate HTML result using RPT commandline

Hi,  Dear all:
    Recently I met this problem.   We can got html result from Rational Performance Tester (RPT)GUI.  After execution is done, right click on result , then can choose to export report as html.   Then the html reports will be uploaded to RQM. 
    Now we are using command line adapter, since there are some variables that we want to parameterize, such as :
cmdline –workspace “workspace “–project “testproj” –schedule “schedule_or_test” -users 100

But how to set to export result format as html ? 

I know there is a default setting in Preference->Test->Performance Test Reports.
Then I see that in ->Default Report, can choose HTTP Reports. 
And in ->Export Reports ->Select report to export,  can also choose HTTP Reports.

But those settings don't work when I use commandline to run RPT.  There is no html reports generated.

Is there something wrong I did ?  Please help ! :)
Thank you very much !!