How to create customized features.

Hii

i am trying to build a  *.chm file of customized features in DS 2.0.For that i am doing the following

1. Open 3D window

2. Query features creating a point in the 3D window

3. copying my neccessary structures to the same window.

4. Seect all and in the pharmacophore tool bar selecting " map any"

5. Selecting the centroid of each structure where mapping should take place.

6. And then selecting all the centroids and the point feature to select "create mapping"

My problem is I am not getting any "feature map" attribute in the table. How can it be solved?

Thanks in advance.