In ezy, your days off are your days off. So, if you take 5 leave days in your 5/3/5/4 pattern, you will get 12 days off. One more if on the 5/4 roster of Italy. In the UK, you get 25 leave days. In Germany, you get 30, so 6 x 12 days off if you take them in blocks of 5 (outside of reserve).
You can have fixed pattern with some of the part time options as well, but the waiting lists for part time is long in many bases.