One of the solution is: Put the four blocks in their own group and then add a embedded data in that groups as ‘blockOrder’ and set it value to ‘ {pipe in blockOrder}, <block number goes here>.

The above set up would give you order of the blocks displayed in the ‘blockOrder’ embedded data. Use this ED in JS to arrange the options.

@Shashi thanks so much! This worked perfectly. I had one follow-up question… 

currently I have blockOrder=${e://Field/blockOrder}a (with a to j denoting the 10 blocks). If the order in which blocks are shown is 3,5,1,10, my output is ceaj. I want to define 4 variables (first, second, .., fourth) that records the 1st, 2nd, 3rd, and 4th letters of the ED blockOrder. Is there an easy command for this? some form of a substring function? 

Thanks again!

@Shashi nevermind, I figured out the substring bit! 

For anyone else who may need this later…  something like the following should work

var first = blockOrder.substring(0, 1);

var second = blockOrder..substring(1, 2);

Thanks again @Shashi