Zoran Kanti-Paul - I just answered you here
http://www.rockettheme.com/forum/gantry5-for-joomla/249077-i-don-t-get-it-gantry-5-means-1-layout-per-page?start=0#1241790
- please read what I said. I don't think that this is the topic to be answering your specific queries based upon your misunderstandings of how Gantry 5 works. Please take the time to study the Gantry 5 documentation first and then also have a look at some of the Gantry 5 templates.
If you want to use a Gantry 4 like layout for Gantry 5 then you can - there a few "Gantry 4" presets that you can load in layout manager - In this way you can use module positions as you always have.
Please raise specific topics about any difficulties that you mage have in the appropriate template forum and we'll be happy to assist you.
Regards, Mark.