Yeah groups work awasome. Thanks alot.
&labithiotis im afraid the walls/roads logic is not as elegant as i intended. I create an object on the last tower, with bunch of imagepoints and another one that rotates toward the mouse. Also towers have Instance Variable that remembers how many walls attached and what orientation they are. If you want i can show you the code, but im afraid its kinda messy.
Anyways i decided i will remove roads as it doesnt fit to gameplay anymore and walls will loose orientation (will look the same both ways). Big waste of the code and art ive done but still i'm happy i acomplished it.