You can easily turn debug on or off with the flipdebug script. Run this while the application server is running and remember to wait a few seconds for the application server to pick up your changes. Here is the usage (just type the script name to see these options):
Usage: flipdebug [-d] [-t] [-r] [-h|-?] [-p] product[,product]
-d Turn on debug for all packages
-t Turn on trace for all packages
-p Turn on trace/debug only for product[,product] (no spaces between products)
-r Revert to original log4j settings
-h|-? Display usage
The product name in -p matches the directory under owareapps. The debug and trace write to the log and to stdout.