Reference to the thread topic, why is it unavailable and made only available in Program builder?
Having this function made available in Create Shared update rule allows me to update a different field of a different language simultaneously during form processing step instead of having this done in Program. I prefer to have the update done on form processing step because if I have to pass it through a program, it will take more than 15 mins for that field to be update after taking into consideration that the evaluation time of each step is 15 mins.
Lookup table field is very useful to update ie. Province field from English to a different language.