Help with a basic alteration on a string patch

[BrendanG]

Hi everyone.
I want to do something that's quite simple but I just don't know where to start.
I've taken a random string patch and saved it to a blank space in user F.
I want to be able to include this string into a combi that I'm making.
All it has to do is play the single note that I'll be pressing which is an C# and when I release it it has to drop down two steps to a B and then fade out all within around half a second.
It's simple to do using the pitch bend but I won't be able to use the pitch bend when I've added it to the combi as I'll be using both hands to play the keys so it has to do it as part of a key off command.
Can something like this be done?

Many thanks for any help.

[Bald Eagle]

You could try using the pitch EG in the program. Set the release level to a negative value.

[BrendanG]

Brilliant. That should do it.
Thank you.