public void setPreviewText(int row, String val) {
		for (int i = 0; i < getColumnCount(); i++) {
			if (getColumnName(i).equals(HEADER_COL_PREVIEW)) {
				InstructionTableDataObject instrDO = getCellData(row, i);
				if (instrDO == null) {
					continue;
				}
				instrDO.setData(val);
			}
		}
	}
Replaces the contents of the preview table at the given row with the
given string.

@param row the row to replace
@param val the new text
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/instructionsearch/ui/PreviewTable.java