@Override
	public DataTypeComponent insert(int rowIndex, DataType dt) throws UsrException {
		return insert(rowIndex, dt, dt.getLength());
	}
Inserts the specified data type at the specified component index.

@param rowIndex the component index of where to add the data type.
@param dt the data type to add

@return true if the component is inserted, false if it doesn't.
@throws UsrException if insert fails
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompEditorModel.java