T simulator instructors!
 

for simulator instructors:

I would like to keep a record of my simulator instructional hours when I am an instructor in the sim.

I have been trying to find a logbook for this, as the standard logbook has only the posibility to log the hours that has been flown either in the actual aircraft or in the sim.

What do other instructors do?
Where do you keep a record of your hours, and if in a logbook, where can I find this?

Regards.