Click Node/ element
click unequal distance, choose required axis . Let we choose x. Than click distance, if we are typing 2,4, 5@1= it means node to be copied at 2m , 4m and 5 times at 1m spacing. than use select all or select single to select single node. click apply. In this first node is created 2m apart in x direction, second is created 4m apart from second node. Than third node are created 1m apart from second node and so on.