\label{Modify_Course_External_Tool}

External Tools can be created in a domain by adding definitions to the ``Provider panel'' in the domain configuration for ``External Tools (LTI)'' available via ``Main Menu'' $>$ ``Set domain configuration''.

Course/Community defaults in a domain's configuration determine whether external tools defined in the domain are available by default, for use in each type of course container. A second default determines whether external tool definitions may be created by Course Coordinators in each of the container types.

A Domain Coordinator can choose to override the domain defaults on a course-by-course basis by checking ``Use course-specific setting'' in the ``External Tool permissions'' menu, accessed via the ``View or modify a course or community'' item (Main Menu).  When that is done one of the following options can be chosen:

\begin{itemize}

\item External tools defined/configured in either domain or course may be used
\item Only external tools defined in domain may be used
\item Only external tools defined in course may be used
\item Use of external tools not permitted

\end{itemize}