How to create a Sequence;

Hi All,
I have a master block and child block;
I need to create sequence number in child block like 1 2 3 4
Line #
When i create new customer and its detail it should start with new sequence
and some one query the records and open it then this should continue the sequence.
Message was edited by:

Jan, I have created the multi records it is fine,
This is about how to get the sequence numbers,
Lets say some one open one record and it have 5 detail records.
if he is in second detail record and try to insert a new record i want to show
Line id 6
I was trying with
if l_line_period>4 then -- we gave default 4 records
bk_id := Find_Block('MSF_LINE');
:line_period := Get_Block_Property( bk_id, MAX_RECORDS_FETCHED)+1;
end if;
CURRENT_RECORD is good if some one navigating properly always into the last record.
Message was edited by:

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