Can't launch MegaWizard for LPM modules like lpm_counter

I haven't used Quartus II in over a year and I just reinstalled it because I want to play around with my FPGA. I was using the FPGA and Quartus last year for a class. I believe at that time I was using Quartus II 9.1. I just install 10.0 and I'm having trouble with the lpm_counter module. I belive in 9.1 I was able to launch the MegaWizard to customize the counter, but now in 10.0 the checkbox is disabled. Is anyone else having this problem? Did I just forget how to customize lpm modules? I know there are parameters I can tweak but I can't get rid of the extra pins I need. I have some old projects with counters that are customized so I know I've done it before, I just can't figure out how to do it now with 10.0.