This tab shows the concept with its concept ID, definition status, descriptions with their acceptabilities in the selected language refset and relationships and is the tab where concept edition takes place, mainly with two buttons: Edit concept and Clone concept.
Edit concept
Opening this button will show all the available editing options for existing concepts: selecting any of the listed links will enable creating a new Fully Specified Name (FSN), synonym(s), text definitions or relationships (both IS_As and attribute relationships). Also, a concept may be inactivated from here. Each of these functionalities is described in How-to section, Creating a new concept, Adapting concepts of the International Edition to local use.
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On the right of each description there is an information button which displays all the details regarding that description Description ID, type, language, etc).