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remconcepts The two primary editors (*BasicEditor and *Tuhi) are both line oriented, with limited ability to replace text within a line. In contrast, *REM exists to provide a visual editor that can edit existing lines more easily. REM provides a cursor (movable with ijkl or chtn) that can be positioned within the block, and an entry mode that overwrites text starting at the cursor position without erasing the entire line. The key mapping was chosen to work on both QWERTY and DVORAK layouts.