Add a typed cell to a reltable row You can add a pre-configured (typed) cell to a reltable row in your DITA map. The map must be locked. In the Table Display area, highlight the row where you want to add the cell. Right-click, then select Insert Cell > celltype. where celltype is one of the following: concept.xml reference.xml task.xml The choices available depend on your configuration. A new cell of the selected type is added to the reltable row and appears in the Row Display area.