How can I replace a node in a (custom) Singly LinkedList with a (custom) Singly LinkedList?

Let's say that the CustomLinkedList listVar has the enumName_t data in it like SOUTH -> EAST -> WEST -> NORTH -> DOWN and we want to replace the node at the NORTH data with CustomLinkedList replacerList that has the enumName_t data in it WEST->SOUTH->EAST->DOWN->WEST such that the result node will look like the following:

SOUTH -> EAST -> WEST -> WEST->( SOUTH->EAST->DOWN->WEST )-> DOWN

SOUTH -> EAST -> WEST -> WEST-> SOUTH->EAST->DOWN->WEST -> DOWN (without parenthesis)

The information needed about CustomLinkedList can be found below and must be used to implement the above mechanics.

enum enumName_t { NORTH, SOUTH, EAST, WEST, DOWN };

class CustomLinkedList

{

typedef struct node

{

enumName_t data;

struct node* next;

void operator=(const struct node& rhs)

{ move = rhs.move; }

} node_t;

private:

node_t* head;

node_t* tail;

double duration;

public:

class iterator

{

private:

const node_t* node;

public:

iterator(const node_t* node) : node(node) {}

enumName_t operator*() const { return node->data; }

void operator++() { node = node->next; }

bool operator!=(iterator rhs) const { return node != rhs.node; }

};

InstructionList()

{ head = tail = nullptr; duration= 1.0; }

~InstructionList();

iterator begin() const { return iterator(head); }

iterator end() const { return iterator(nullptr); }

iterator end() const { return iterator(nullptr); }

};