Thank you for your post.
It is not possible to show 16 channels in Picoscope. However you can in Picolog in the right conditions. It will depend on what unit you wish to use, did you have one in mind?
You would need either a logger that had 16 or more channels, or multiple loggers. When you use mulitple loggers you are limited to using Real Time Continuous mode and thus have a maximum sample rate of 1 per ms.
Hope this helps