| chapter_info | Information concerning the chapters on procedures. |
| disp_info | Displays the manual information of a procedure on the screen. |
| param_info | Information concerning the procedure parameters. |
| proc_info | Information concerning a HORUS-procedure. |
| proc_info1 | Returns to the names of the parameters of a HORUS-procedure. |
| proc_info2 | Number of the different parameter classes of a HORUS-procedure. |
| proc_info3 | Default data type for the control parameters of a HORUS-procedure. |
| proc_name | Returns procedures with the given string as a substring of their name. |
| query_param_info | Slots of the online-information concerning the operator param_info. |
| query_proc_info | Slots concerning information with relation to the operator proc_info. |
| search_keyword | How to call keywords which are assigned to procedures. |
| search_proc | Names of all procedures assigned to one keyword. |