Ok kid, I was trying to be sarcastic with my reply. This is not a flight simulator forum, there are plenty of those in the web, you might want to check them. And as a piece of advice for your life: read the instructions before u use. (Please, donīt be offended, I mean it in a good way)
From the "Sticky" on top of the Tech Log section:
Change in Tech Log Emphasis
Following recent PPRuNe management discussions and decisions, Tech Log will skew its emphasis away from the simpler questions. These will now be located in the Questions Forum. Similarly, questions of a general nature may be relocated to Questions as well.
It would be appreciated if folk could be a little discriminating in starting new threads and keep Tech Log for the more involved questions
(end of quote)
Anyway, to answer you question I would suggest you get yourself an FCOM, plenty of those in the internet, and read it.
Also, as a hint, the altitute you set in the FCU will be the governing parameter, the aircraft will level off there, it doesnīt matter wathever you might have set in the box.
Happy reading!