Your plugin has many forwards?
with this example you can create forward like register_forward of fakemeta module.
I know that other way is CreateMultiForward but this can be a another option.

PHP Code:
#include <amxmodx>

enum
{
    Fake_Connect = 0,
    Fake_Disconnect,
    Fake_ChangeName,
    Fake_PutInServer
}

new Array:g_fakeforwards_type
new Array:g_fakeforwards_num

public plugin_precache() 
{
    register_plugin("Fake Forwards", "1.0", "ReymonARG")

    g_fakeforwards_num = ArrayCreate(1, 1)
    g_fakeforwards_type = ArrayCreate(1, 1)
    
}

// We need to register the call for the forwards
public plugin_natives()
{
    // Librery
    register_library("fake_forwards")
    
    // Natives
    register_native("register_fakeforward", "_register_event")
    register_native("unregister_fakeforward", "_unregister_event")
}

public _register_event(plugin, params)
{
    // Are correct the params? return
    if( params != 2 )
        return -1
    
    static type, g_callout[33], forwards_num
    type = get_param(1)
    get_string(2, g_callout, 32)
    
    // Here We create the Forward.
    switch( type )
    {
        // So some forwards have diferent out, so we need this to create diferent styles.
        case Fake_Connect: forwards_num = CreateOneForward(plugin, g_callout, FP_CELL)
        case Fake_Disconnect : forwards_num = CreateOneForward(plugin, g_callout, FP_CELL)
        case Fake_ChangeName : forwards_num = CreateOneForward(plugin, g_callout, FP_CELL, FP_STRING)
        case Fake_PutInServer : forwards_num = CreateOneForward(plugin, g_callout, FP_CELL)
        default: return -1
    }
    
    // Can create the forward? Return.
    if( forwards_num == -1 )
        return -1
    
    // Save the type of the forward and the num.
    ArrayPushCell(g_fakeforwards_type, type)
    ArrayPushCell(g_fakeforwards_num, forwards_num)
    
    return forwards_num
}

// Well i think that this dont is good, But i will try to better this part.
public _unregister_event(plugin, params)
{
    // Its param = 1 ? return.
    if( params != 1 )
        return -1
    
    static i, fwd_id
    fwd_id = get_param(1)
    
    // Found the forward and delete.
    for( i = 0; i < ArraySize( g_fakeforwards_num ); i++)
    {
        if( ArrayGetCell(g_fakeforwards_num, i) == fwd_id )
        {
            // Delete forward
            DestroyForward(fwd_id)
            
            // And items.
            ArrayDeleteItem(g_fakeforwards_type, i)
            ArrayDeleteItem(g_fakeforwards_num, i)
            
            return 1
        }
    }
    
    return 0
}

public client_connect(id)
{
    static i, null_id
    
    // Well this is the mechanism to exec the forwards.
    for( i = 0; i < ArraySize( g_fakeforwards_num ); i++)
    {
        // If item type is Fake_Connect ?
        if( ArrayGetCell(g_fakeforwards_type, i) == Fake_Connect )
        {
            // Exec the forward.
            ExecuteForward(ArrayGetCell(g_fakeforwards_num, i), null_id, id)
        }
    }
}

public client_disconnect(id)
{
    static i, null_id
    for( i = 0; i < ArraySize( g_fakeforwards_num ); i++)
    {
        if( ArrayGetCell(g_fakeforwards_type, i) == Fake_Disconnect )
        {
            ExecuteForward(ArrayGetCell(g_fakeforwards_num, i), null_id, id)
        }
    }
}

public client_infochanged(id)
{
    static oldname[32], newname[32], i, null_id
    get_user_name(id, oldname, 31)
    get_user_info(id, "name", newname, 31)
    
    if( !equal(oldname, newname) )
    {
        for( i = 0; i < ArraySize( g_fakeforwards_num ); i++)
        {
            if( ArrayGetCell(g_fakeforwards_type, i) == Fake_ChangeName )
            {
                ExecuteForward(ArrayGetCell(g_fakeforwards_num, i), null_id, id, newname)
            }
        }
    }
}

public client_putinserver(id)
{
    static i, null_id
    for( i = 0; i < ArraySize( g_fakeforwards_num ); i++)
    {
        if( ArrayGetCell(g_fakeforwards_type, i) == Fake_PutInServer )
        {
            ExecuteForward(ArrayGetCell(g_fakeforwards_num, i), null_id, id)
        }
    }
} 
And Example for recibe the forwards.

PHP Code:
#include <amxmodx>

#pragma library fake_forwards

enum Fake_Forwards
{
    Fake_Connect = 0,
    Fake_Disconnect,
    Fake_ChangeName,
    Fake_PutInServer
}

native register_fakeforward(Fake_Forwards:type, const out[])
native unregister_fakeforward(fwd_id)

public plugin_init() 
{
    register_plugin("Forward Recive", "1.0", "ReymonARG")
    
    register_fakeforward(Fake_Connect, "fw_client_connect")
    register_fakeforward(Fake_Disconnect, "fw_client_disconnect")
    register_fakeforward(Fake_ChangeName, "fw_client_changename")
    register_fakeforward(Fake_PutInServer, "fw_client_putinserver")
}

public fw_client_connect(id)
{
    server_print("Client %d Connecting", id)
}

public fw_client_disconnect(id)
{
    server_print("Client %d Disconnect", id)
}

public fw_client_changename(id, const newname[])
{
    server_print("Client %d Change name to %s", id, newname)
}

public fw_client_putinserver(id)
{
    server_print("Client %d Connect", id)
}