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- Wording.

 \label{Slot_SelectingField}
 
The system will read the file into the system. You will then be prompted to specify the input type of each field. A set of types is given for each field. There are four mandatory types, slot name, type of slot, starting time, and ending time. A mandatory type means that a column must be selected for that field.  The input choices are as follows:

 \begin{itemize}
	 \item \textbf{Slot name}. The name or identifier of the slot. The name of the slot must be unique, and must contain only letters, numbers or underscores. This input is mandatory, you must specify a field for this input type.  	
	 \item \textbf{Type of slot}. This determines whether students are allowed to schedule themselves for the slot, or whether instructor(s) assign students to the slot. The valid inputs for this field are either ``preassigned'' or ``student\_selectable''. There must be no space before or after the comma. If this type is not specified, the slot type defaults to preassigned (i.e., instructor assignable).	
	 \item \textbf{Slot Description}. A description of the slot. If this isn't provided the default description of a slot is 'Slot name From Start Time to End Time'.
	 \item \textbf{Start Time of slot}. This determines the time when a slot starts to open. This input type is mandatory. There are various accepted formats for this field. Two of which are ``YYYYMMDDHHMNSS'' and ``MM/DD/YYYY HH:MM:SS''.
	 \item \textbf{End Time of slot}. This determines the time when a slot ends and a user cannot access the resource. This input is mandatory. The accepted formats for this field are the same as for the start time of slot.
         \item \textbf{Message when reservation changed}. This determines whether a reservation change by a student triggers dispatch of a LON-CAPA message to the student making the change and/or to the user record for the student (visible to the instructor). If set, this can be one of:
         \begin{itemize}
                \item only\_student
                \item student\_and\_user\_notes\_screen
                \item none
         \end{itemize}
         corresponding to: ``Sent to student'', ``Sent to student and added to user record'', and ``None sent and no record in user notes'', respectively.  Default (i.e., with nothing set) is equivalent  to that of ``none''.
	 \item \textbf{Reservation Start Time}.	This determines when a student can start reserving for the slot. The accepted format for this field is the same as for the start time of the slot.

	 \item \textbf{Date range of slot exclusion}. Sometimes a student is limited to a number of slot use for a particular date period. This field allows a range of dates where a student may not have more than one slot reservation/use. The format is ``StartingDate,EndingDate'', where starting date and ending date are time, which is the same for start time of slots.
	 \item \textbf{Maximum number of reservations}. The number of students allowed to reserve this slot. This is useful when slots are opened in a classroom/lab, and there is a limited number of seats. 	
	 \item \textbf{IP or DNS restriction}. The set of computers that can be used to use this slot between the starting time and the ending time of slots. This a comma separated list of items that can be 
	 \begin{itemize}
	         \item Specific IP address, Ex. 192.168.1.1
	         \item Specific IP address range, Ex. 192.168.1.[24-120]
	         \item Wildcard IP address, Ex. 192.168.1.*, 192.168.*
		 \item Specific Hostname, Ex. computer1.lab1.msu.edu
		 \item Wildcard Hostname, Ex. *.lab1.msu.edu or *.msu.edu
	 \end{itemize}
	 \item \textbf{List of proctor ids}. The list of proctor userids one of whom must authorize the student before the student can access the content restricted by the slot. The proctor userids are separated by a comma.  
	 \item \textbf{Secret word proctor uses to validate}. The password the proctors use when authorizing the students.
	 \item \textbf{Resource Restriction}. Restricts for which resource(s) or sequences/pages this slot can potentially be used to control access. This must be a full symb reference \ref{About_Symbs} to a resource or map (i.e., sequence or page).
	 \item \textbf{Sections slot is restricted to}. When choosing the preassigned slot type, you can choose a section that can use this slot. Only students in that section can open a particular slot. Separate multiple sections by commas.
	 \item \textbf{Users slot is restricted to}. When choosing the preassigned slot type, you may choose a list of students who can access this slot. Student/employee userids (username:domain) are separated by commas.
 \end{itemize}