Optionally add vertical scaling (growth or shrinking) to elements in Columns/Rows/Boxes transitions. Accepts three possible formats denoting either fixed, random or cycles based scaling. 1) Fixed: (val) A single value between 0 and 500. A value of 1 has no effect, < 1 scales down (shrinks), and > 1 scales up (grows). 2) Random: {min,max} Applies a random amount of vertical scaling within a specified range. E.g, {0,2.5} will randomly generate scaling on each element of between 0% and 250%. 3) Cycles: [val,val,val] Cycles through applying specified vertical scaling amounts sequentially from one element to the next, in the order determined by the 'Flow' setting. E.g. [0,1.5,0.2] will apply a 0% scaling to the first element, 150% to the next, then 20%, then the sequence repeats.