Unfortunately, we do not provide such feature yet. However, I'll forward your suggestion to our development department for a review to see if we can add this feature to our roadmap and implement it in our future updates. Meanwhile, as a temporary workaround you can use Host or Viewer logs - however, please note that the log file only stores time when the remote session was started. Sorry for the inconvenience.
I would also urge you to move this feature up in the priority list - it's been discussed since as far back as at least 2015 and is now showing up in many competing products - very important for those of us billing for support time and working outside of an expensive comprehensive support platform.