if you have connected to your server in step 5, you can goto to any folder you have on your webserver.  just use the buttons on top  or select the folder 9depends on if you want to go up or down), there are also buttons for downloading and uploading files.

Step 5?  What is step 5?

I want to show files ON LINE, real time!

Sorry I misunderstood. Just to be sure, you want to show a folder in your website so that visiters can download any item in that folder ?

The items in that folder will vary from time to time. Is that correct ?

In that case you need to edit or  create  an .htacces file with permission in that folder. There is information on internet for this see for instance:

https://mediatemple.net/community/products/dv/204643050/making-directories-browsable-solving-403-errors

You can create a file or  upload and maintain it through the control panel of your web provider.