Store exit code in temporary macro

[innomatics]

I would like to be able to store the exit code of the program command in a temporary macro during a build step.

This is so I can decide, based on the exit code whether to execute a future step.

For example, an installation returns with code 3010 to signal the install succeeded, but a reboot is required. I have added this exit code to the Success exit codes which is fine, but I think I need to set the temp macro to the exit code value in the post step event. Is this possible?