I (Insert - Edit only)
Using the I line command you can insert an occurrence of the segment type displayed on the line where the command was entered.
FM/IMS displays the Insert Segment panel where you can enter key values for segments in the hierarchical path to the segment being inserted. The Insert Segment panel is initialized with the key values for the segments in the hierarchical path for the selected segment.
After the insertion of the segment is completed, FM/IMS returns to the IMS Data panel, redisplaying the page that was previously displayed.