= load(
  local!exchanges,
  local!exchanges1,
  local!classes,
  a!sectionLayout(
    label: "Lorem Ipsum",
    firstColumnContents: {
      a!checkboxField(
        label: "Exchange",
        labelPosition: "ABOVE",
        choiceLabels: {
          "CBOT",
          "CME",
          "COMEX",
          "NYMEX"
        },
        choiceValues: {
          "CBOT",
          "CME",
          "COMEX",
          "NYMEX"
        },
        value: local!exchanges,
        saveInto: {
          local!exchanges,
          a!save(
            local!classes,
            if(
              isnull(
                local!exchanges
              ),
              null,
              fn!choose(
                length(
                  local!exchanges
                ),
                if(
                  local!exchanges = "CBOT",
                  append(
                    split(
                      {
                        "a",
                        "b",
                        "c"
                      },
                      ";"
                    )
                  ),
                  if(
                    local!exchanges = "CME",
                    append(
                      split(
                        {
                          "d",
                          "e",
                          "f",
                          "g"
                        },
                        ";"
                      )
                    ),
                    if(
                      local!exchanges = "COMEX",
                      append(
                        split(
                          {
                            "f"
                          },
                          ";"
                        )
                      ),
                      if(
                        local!exchanges = "NYMEX",
                        append(
                          split(
                            {
                              "a",
                              "b",
                              "f"
                            },
                            ";"
                          )
                        ),
                        null
                      )
                    )
                  )
                ),
                if(
                  length(
                    wherecontains(
                      local!exchanges,
                      {
                        "CBOT",
                        "CME"
                      }
                    )
                  ) = 2,
                  append(
                    split(
                      {
                        "a",
                        "b",
                        "c",
                        "d",
                        "e"
                      },
                      ";"
                    )
                  ),
                  null
                ),
                if(
                  length(
                    wherecontains(
                      local!exchanges,
                      {
                        "CBOT",
                        "CME",
                        "COMEX"
                      }
                    )
                  ) = 3,
                  append(
                    split(
                      {
                        "a",
                        "b",
                        "c",
                        "d",
                        "e",
                        "f"
                      },
                      ";"
                    )
                  ),
                  null
                ),
                if(
                  length(
                    wherecontains(
                      local!exchanges,
                      {
                        "CBOT",
                        "CME",
                        "COMEX",
                        "NYMEX"
                      }
                    )
                  ) = 4,
                  append(
                    split(
                      {
                        "a",
                        "b",
                        "c",
                        "d",
                        "e",
                        "f",
                        "g"
                      },
                      ";"
                    )
                  ),
                  null
                )
              )
            )
          )
        }
      ),
      a!checkboxField(
        label: "Exchange2",
        labelPosition: "ABOVE",
        choiceLabels: {
          "ABC",
          "XYZ"
        },
        choiceValues: {
          "ABC",
          "XYZ"
        },
        value: local!exchanges1,
        saveInto: {
          local!exchanges1,
          a!save(
            local!classes,
            if(
              isnull(
                local!exchanges1
              ),
              null,
              fn!choose(
                length(
                  local!exchanges1
                ),
                if(
                  local!exchanges1 = "ABC",
                  append(
                    split(
                      {
                        "a",
                        "b",
                        "c"
                      },
                      ";"
                    )
                  ),
                  if(
                    local!exchanges1 = "xyz",
                    append(
                      split(
                        {
                          "d",
                          "e",
                          "f",
                          "g"
                        },
                        ";"
                      )
                    ),
                    null
                  )
                )
              )
            )
          )
        }
      )
    },
    secondColumnContents: {
      a!checkboxField(
        label: "Class",
        labelPosition: "ABOVE",
        choiceLabels: {
          "a",
          "b",
          "c",
          "d",
          "e",
          "f",
          "g"
        },
        choiceValues: {
          "a",
          "b",
          "c",
          "d",
          "e",
          "f",
          "g"
        },
        value: local!classes,
        saveInto: {
          local!classes
        },
        validations: {}
      )
    },
    validations: {}
  )
)