No, that is not how it is done.  Getting dynamic clothing to fit La Femme 2 requires working with an unmorphed base figure and running a Cloth simulation where you introduce morphs and poses.  The LF2 to LF1 Prefit Tool needs to be applied to the clothing.  La Femme Pro 2 has a built-in tool feature to change her shape from LF2 to LF1.

At this point, I am asking exactly what contents you own, what you want to accomplish, and whether you are working with a morphed figure or not.  Some of these requests have been made before and you have not provided the information necessary to guide you in the right direction.  It is frustrating that you haven't gotten closer to understanding the instructions posted in other comments.

Are you able to transfer morphs between figures or objects?  If not, you have a major problem in trying to utilize any conversion features.