TWE distribution comes with several customized configurations. You can switch from one configuration to another one if you select Settings->Configuration and select desired configuration. TWE will be re-configured to use selected configuration.
Available configurations are:
default - default TWE configuration.
shark - configuration specific to TWE usage with Shark engine. Includes special property panels for editing some of extended attributes, shark specific restrictions and validation according to these restrictions.
samples-loopactivity - sample configuration that introduces new type of activity along with the special icon for this activity and special property panel for editing its properties.