This is part of the ChasmGui instructions.
Use the Packages list to view and manage concepts.
If you wish to close a package, select it and hit the unload button. This merely closes the directory, it does not delete it.
To load a directory, hit the Load Packages button and navigate to the directory you wish to load. Select it and hit the "Open Package Directory" button.
Open the RaycastingEnvironment package and see there is nothing there. Select the package so that it highlights and hit the Create button to create a new, untitled concept.
Double click to open the concept in the main window.
Double click on the button up top in the main menu. It will close down the view of that concept.
If you do not like this concept, you can delete the concept by selecting the concept in the packages window and hitting the delete key. A dialog window will ask if this is what you meant. NOTE: This deletes the chasmxml file from the directory so the changes are permanent.
NOTE: An asterisk beside a concept denotes that it is an observed concept.