Working with merged columns
Using Interactive Viewer, you can format, sort, aggregate, and filter data in a merged column. When working with merged columns, when you choose Filter from the context menu, Select Data Item appears, as shown in Figure 7‑32, providing a drop‑down list of columns in the merged column.
Figure 7‑32 Selecting a data item
From the drop‑down list, select the data item or column to modify. Choose OK.
You can now modify data in the column as described in the previous sections of this document. To modify each column in the merged column, repeat this step for each data item, and specify a modification action.