Katalon Studio uses the logback as the implementation of the slf4j interface. Some articles on the web explains how to use SLF4J and Logback. For example, please refer to:
Once I have ever tried to change the logback configuration in Katalon Studio. See the following post:.
In this post, I tried to change the format of log messages by modifying the logback configuration. Similarly you can add new appender which writes message into file by modifying the logback configuration.
Here I just mention, it is possible. But it requires a fair amount of programming work.