[SOLVED] How to attach files to emails

I want to attach files to emails , please would you mind to help me how to do it , as when I open the email screen for sending email I never see a section of how to attach a file in it.
thanks and regards 

When I open the email menu I see all the fields like the picture you showed , only the file attachement section does not appear for me , is there any configuration parameter that I need to add or any php parameter to configure to make this section appear in our menu of email sending.

Hello Babynus 
Thank you for your reply.
we have files already attached t the activity.
please see the first screen capture.
also see what take a look  in the email menu that we have  , there are noa attached files although they exist in the activity.
Thanks for your help and assistance           
this what we have in paaprmeters.php file :

<?php
// =======================================================================================
// Automatically generated parameter file
// on 2017-05-04 17:39:46
// =======================================================================================
$paramDbType='mysql';
$paramDbHost='gsolutionsconsulting.com';
$paramDbPort='3306';
$paramDbUser='rootgsc';
$paramDbPassword='mysql';
$paramDbName='projeqtorgsc';
$paramDbPrefix='';
$paramDbCollation='utf8_general_ci';
$SslKey='';
$SslCert='';
$SslCa='';
$logFile='../files/logs/projeqtor_${date}.log';
$enforceUTF8='1';
//======= END

is there any string to put here or any other config file regading emil file attachement and/or directory for file attahcement ?

hi have seen a such similar case any where ?