Drum mapping question

Open the Drum Map Manager and load the BFD2 map of your choice. This will cut down on the typing needed to build the new map because all the names and "Out Note" columns are filled out for BFD2.
 
Open the "Addictive Drums Keymap.pdf", the default location for it is "c:\Program Files (x86)\XLN Audio\Addictive Drums\Manual" or open it from the AD UI.
 
Adjust the "In Note" column to the values in the "Addictive Drums Keymap.pdf" and save the drum map with a new name.

There are several BSD2 drum maps included with SONAR.
 
After opening the Drum Map Manager, click New just under the heading "Drum Maps Used in Current Project". This will populate the Presets drop down in the setting section. After selecting a preset, I usually rename it imediately to avoid accidentally overwriting the existing preset. To rename the drum map, change the preset name and click the diskette icon to the right of the preset drop down. Then start updating the "In Note" column.
 
FYI, the location of the maps which populate the preset drop down is specified in Preferences > File > Folder Locations.