Hi,
Do you mean that you want to set environment variable of m00431 to parameter?
I have not tried actually, so this is just idea.
You can create a shell script included "su m00431 and printenv" to extract env list to a text file, and run the script using [Run Command Line] action type. As next action, you can use some action types like [Extract Text from a File] or [Arrays - Read String Array from Text File] to get the variables from the file to parameters.
You may need to customize your script file and choice action types for your requirement.
If you want to perfect solution, I believe CA Services can help you.
Regards
Yas