Dear Sean,

Actually I had already seen that page. I made a double check, it does not match with my question, sorry.

Let me try to give the example in that page:

CloudDeploy[
    FormFunction[
        {
            {"x" -> {"cat", "actress"}}, 
            {
                Switch[#x, 
                    "cat",   "y" -> "CatBreed", 
                    "actress",       "y" -> {
                                                Entity["Person", "AnneHathaway::fkdf7"], 
                                                Entity["Person", "HalleBerry::hj23z"], 
                                                Entity["Person", "LeeMeriwether::863fn"]
                                               }
                 ]
            } &
        },
        #y["Image"] &, "PNG"
    ]
]

That command has a flow like that: First "x" is shown. According to x's content "y" is introduced. And according to y's content an actress search (or catbreed) is done. This algorithm is static, i.e. nothing is "variable".

What I am looking for is something more elastic. Using the same example, I am trying to find a way (hopefully a clean way) to manupulate content of "x".

For example

• in the first time x will show "cat" and "actress",
• after the submit it will show "dog" and "your 1. choice was cat" text...
• after next submit it will say "donkey" and "your 2. choice was dog" text ...

Best regards,