private void maskOperand(boolean mask, int i, int j) {
		InstructionTableDataObject obj = getCellData(i, j);

		// Check the object viability and type. Only proceed if this is an operand.
		if (obj != null && obj.getOperandCase() != null) {
			if (mask) {
				obj.setState(OperandState.MASKED, false);
			}
			else {
				obj.setState(OperandState.NOT_MASKED, false);
			}
		}
	}
Masks a single operand.

@param mask true for mask, false for unmask
@param i the row index of the instruction
@param j the column index of the operand
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/instructionsearch/ui/InstructionTable.java