Oracle form Controls Tab Index Issue

I have a form with multipleText Items. Whenever i use keyboard and check the Tab order it is not proper. I don't see any Tab Index property here. So how will i make sure that the Tab Index order it as desired.
I have Address1, Address2, City, State, Zipcode and if i use keyboard Tab the focus is going from Addreeline1 to State to City to Zipcode to Address2. But i want like Address1, Addreess2, City, State, Zipcode order.

I have 4 datablocks and 3rd datablock id disabled. By using PREVIOUS NAVIGATION ITEM, NEXT NAVIGATION ITEM or datablock_name> ---> Items i am able to set the tab index for data block 1 and datablock 2 successfully. Now my focus should go to Datablock 4 first item. After the last item of the data block2 whenever i click on tab key i am getting FRM40106:No navigable items in the destination block error instead of skipping 4rd block and going to 4th block. Please advice and tanks for all your responses.
jyothsna1803Asked:
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jyothsna1803Author Commented:
I have 4 datablocks and 3rd datablock id disabled. By using PREVIOUS NAVIGATION ITEM, NEXT NAVIGATION ITEM or datablock_name> ---> Items i am able to set the tab index for data block 1 and datablock 2 successfully. Now my focus should go to Datablock 4 first item. After the last item of the data block2 whenever i click on tab key i am getting FRM40106:No navigable items in the destination block error instead of skipping 4rd block and going to 4th block. Please advice and tanks for all your responses.
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flow01Commented:
On entering the form
the first item is by default the first item in the first block that is enabled.
On the form level properties you can overrule that by definining the first block to enter.
Within a block the order is by default the order of the enable items in the block.
You can overrule that by the PREVIOUS/NEXT NAVIGATION properties : but it wil stay always within the block.
To skip true the items over the block overrule the default  next_item behaviour by defining a key-next-item-trigger on the desired blocks or on the last/first item of the block.
For example on datablock3.last_item
    key_next_item.trigger
    is
    begin
        go_item('4rd datalblockname.first_itemname');
              -- note !! by leaving block2 all behaviour  associated
             --  with leaving block2 (validations, commit/post-processing)
             --and entering block4 (when- new-block,when-new-record, when_new_item) will take place
    end;

 
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