Yet i have customise the Estimate detail layout according to my useable fields. I want to put auto increment of no. in S.No. column for each new record which i have add in estimate layout. I have tried to put value from auto serial No.but the value are comming in contigenius serial way. Means if i go for next record then the no are displaying next to from last no of previous record. I hope i may some were wrong on putting the correct value list.