how to retrieve list of valid field options from client?

I believe what you are looking for is the following endpoint from the REST v10 API:

GET /rest/v10/<module>/enum/:field

I believe what you are looking for is the following endpoint from the REST v10 API:

GET /rest/v10/<module>/enum/:field

Hello klicks

May be this is one option for you:

var options_forecast = app.lang.getAppListStrings('forecast_list'); 
//this gonna be any list from studio


Object.keys(options_forecast ).forEach(function(key){
    if(key == "Pipeline")
    {
        delete options_forecast [key];
    }
}});
this.model.fields['your_list_to_set_c'].options = options_forecast;

Thanks, just what I was looking for!