This Module is currently available.
Sample and Hold
The Q117 Sample and Hold module is used to capture a signal's voltage level and hold it. The sampling can be triggered by an external signal such as an oscillator, by the internal oscillator, or manually. An LED indicates when a sample is being taken.
Interesting effects can be created by sampling a noise waveform and using the result to control an oscillator, filter, or clipper.
These merchants probably sell this module. Huh?