a problem when i insert a new obs

[anhkhoa_lpt]

when i used ARIMA model to estimate CPI in Vietnam, i met a inconvenience. I can forecast the cpi rate in April by model. After that, when goverment public the CPI at April, i continue use this data to insert to my table, as a new observation. To forecast the new CPI in May, i have to repeat all my actions (for example: create log(cpi), creat d(ly), etc ...), it take me a lot of time. Do Eviews have a method to improve my problem ? tks a lot.
sorry because my writing skill in English isn't good

[EViews Glenn]

I'm not certain that I understand precisely the question, but it strikes me that some combination of

1) Batch programs
2) Formula (frml)

should get you going.