The following video shows how each string’s convolution reverb can be assigned to a different impulse response. The dry/wet of the reverb can also be assigned. If you look carefully in the video, when a string is selected the left menu will show what impulse response it is using. However, it will not show the proper dry/wet value it is assigned to. If I assigned the string to 40%, deselected and then selected it again, it may not show 40% but it is actually still assigned to 40% until I adjust the slider again.

Impulse Responses: 1) I placed a mic inside a giant singing bowl and recorded it’s decay after being struck 2) Dropped a large flat book in a shower 3) and 4) Stuck a spring in between the piano strings and waited for it to explode out