^BHelp - Engine features

  You can explore the available features using the following commands:
  ^Blist_func^N  Lists available engine functions
  ^Blist_var^N   Lists available configuration variables

  Most of the functions and variables have a short description of 
  their own. You can also get some information on the internal state:
  ^Blist_ent^N     List entities
  ^Blist_info^N    List information about objects
  ^Blist_model^N   List models