You accomplish this using the Set Enterprise Data step just before the Select Resource step (or in the Selected branch if you have Auto Connect set to Off).

You have a finite amount of Enterprise Data variables available to you. Please read the Cisco Desktop Administration and the Step Reference Guide for details. Here is an overview of how this would work:

1) Define the ECC variable in CDA. It should start with "user.". A logical name may be "user.caller.language".

2) Add the ECC variable to the CDA layout(s) that it should appear on.

3) In the script, define the ECC variable from Settings > Extended Call Variables. This will map the variable from within the script to what you have defined within CDA.

4) Add a Set Enterprise Data step at the appropriate location and assign the variable showing the caller-selected language to the ECC variable you have defined.

Save and refresh the script. This data will now appear when that CAD layout is triggered. If you have multiple layouts, be sure that the Set Enterprise Data also sets the layout you want to use.