Sorry you cant.
You need to make a sound-recording of your usage of your MIDI-drumpad, that can be don e in any audio-recording software -like Audacity.
The recorded wave-file, can then be dragged into a LMMS-Sample-track.
Make sure to search to see if your idea has been posted before! Check our issue tracker as well, just to make sure you are not posting a duplicate: https://github.com/LMMS/lmms/issues
Sorry you cant.