\label{Domain_Modify_Community} Although almost all community settings can be modified by a Community Coordinator, the following may only be set or modified by a Domain Coordinator: \begin{itemize} \item Community owner (permitted to assign Community Coordinator roles in a community). \item Unique six character community identifier which students can use to search the catalog, when catalog type is set to ``Code search form''. \item Override defaults for who configures self-enrollment for a specific community. \item Override default for lifetime of "temporary" MySQL tables containing member performance data. \item Total disk space allocated for storage of portfolio files in all groups in a community. \item Disk space allocated for storage of content uploaded directly to a community via Community Editor. \item Responder threshold required to display anonymous survey submissions. \item Override defaults for submit button behavior post-submission for a specific community. \item Override default for requirement for re-authentication for LTI-limited launch of deep-linked item. \item Override default permissions for external tools use for a specific community. \item Hiding/unhiding a community from the Course/Community catalog (although can be configured to be modifiable by a Coordinator in community context). \item Manual cataloging of a community (although can be configured to be modifiable by a Community Coordinator in community context). \end{itemize} When a Domain Coordinator follows the ``View or modify a course or community'' link in the Main menu, a course/community search web form will be displayed which can be used to show communities which match specified search criteria. There are two options for a selected community -- either enter the community with an ad hoc Coordinator role, or display seven icons/links for viewing or changing values for the modifiable settings described above.