Te basta crear un único archivo.ch y en el agregar todos los includes.ch del proyecto.
Ejemplo:
#Include "Fivewin.Ch"
#Include "Dll.ch"
#include "dbinfo.ch"
#Include "FastReph.Ch"
#Include "Directry.ch"
#Include "DSay.Ch"
#include "fileio.ch"
#include "Image.ch"
#Include "Mail.Ch"
#Include "Ord.Ch"
#Include "Report.Ch"
#Include "SSay.Ch"
#Include "URLLink.ch"
// colores
#Define CLR_LGRAY nRGB( 230, 230, 230 )
#Define CLR_LGREEN nRGB( 190, 215, 190 )
#Define CLR_VERMELHO nRGB( 255, 000, 000 )
#Define CLR_AMARELO nRgb( 255, 255, 000 )
#Define CLR_BOMBOM nRGB( 000, 000, 000 )
#Define CLR_MARROM nRGB( 135, 206, 250 )
#Define CLR_MENTA nRGB( 221, 255, 238 )
#Define CLR_HMENTA nRGB( 000, 128, 000 )
#Define CLR_SOFTYELLOW nRGB( 255, 251, 225 )
#Define COLOR_BTNFACE 15
#Define TRUE .T.
#Define FALSE .F.
#Define PAD_LEFT 0
#Define PAD_RIGHT 1
#Define PAD_CENTER 2
#Define SW_SHOWMAXIMIZED 3
#ifndef XPP
#define HKEY_CLASSES_ROOT 2147483648
#define HKEY_CURRENT_USER 2147483649
#define HKEY_LOCAL_MACHINE 2147483650
#define HKEY_USERS 2147483651
#define HKEY_PERFORMANCE_DATA 2147483652
#define HKEY_CURRENT_CONFIG 2147483653
#define HKEY_DYN_DATA 2147483654
#else
#define HKEY_CLASSES_ROOT 1
#define HKEY_CURRENT_USER 2
#define HKEY_LOCAL_MACHINE 3
#define HKEY_USERS 4
#define HKEY_PERFORMANCE_DATA 5
#define HKEY_CURRENT_CONFIG 6
#define HKEY_DYN_DATA 7
#endif
#define SUCCESS_SUCCESS 0
#define MAPI_USER_ABORT 1
#define MAPI_E_FAILURE 2
#define MAPI_E_LOGIN_FAILURE 3
#define MAPI_E_DISK_FULL 4
#define MAPI_E_INSUFFICIENT_MEMORY 5
#define MAPI_E_ACCESS_DENIED 6
#define MAPI_E_TOO_MANY_SESSIONS 8
#define MAPI_E_TOO_MANY_FILES 9
#define MAPI_E_TOO_MANY_RECIPIENTS 10
#define MAPI_E_ATTACHMENT_NOT_FOUND 11
#define MAPI_E_ATTACHMENT_OPEN_FAILURE 12
#define MAPI_E_ATTACHMENT_WRITE_FAILURE 13
#define MAPI_E_UNKNOWN_RECIPIENT 14
#define MAPI_E_BAD_RECIPTYPE 15
#define MAPI_E_NO_MESSAGES 16
#define MAPI_E_INVALID_MESSAGE 17
#define MAPI_E_TEXT_TOO_LARGE 18
#define MAPI_E_INVALID_SESSION 19
#define MAPI_E_TYPE_NOT_SUPPORTED 20
#define MAPI_E_AMBIGUOUS_RECIPIENT 21
#define MAPI_E_MESSAGE_IN_USE 22
#define MAPI_E_NETWORK_FAILURE 23
#define MAPI_E_INVALID_EDITFIELDS 24
#define MAPI_E_INVALID_RECIPS 25
#define MAPI_E_NOT_SUPPORTED 26
... Continua
Saludos.