Update All Rows in Sub form

Update All Rows in Sub form

Hay ,

Have one Form Named as OWNER with fields:-
NAME  (Name Field)
CURRENT ADDRESS  (Address Field)
ADD CONTACTS  (Sub Form of CONTACT- CONTACT is Different Form)
Sub form Fields- TYPE , COMPANY ,  ADDRESS ,  DATE  , COMMENT , BID

i need when user enters NAME , then Automatically TYPE = "OWNER" , COMPANY = input.NAME ,  ADDRESS = CURRENT ADDRESS , DATE = zoho.currentdate in each row in sub form . And Disable NAME ,COMPANY,ADDRESS ,DATE in each row too.

if NAME updated in future then COMPANY = input.NAME also updated in each existing row . same with CURRENT ADDRESS,if updated then ADDRESS = input.CURRENT ADDRESS in each existing row.

How can i achieve this ? Thank You in Advance !