I know how you feel. I spent a month fishing through the lunatic asylum in order to glean these gold nuggets in order to fully arm my GUI with all the available firepower on this forum - and other's collections - which I plundered.
For reasons known only to the minimalist crowd - there is no 'optional' download where, after you purchase Moi3d, you can choose a convenient ZIP ADD-ON which will empower your software with MYRIAD abilities. Below are some of the gem sources: