Navigate to pressed button in multirecord block

Hi,
I'm using Forms 6i (6.0.8.27.0), Client / Server.
I have a multi-record block with a button ("+") in the block for duplicating the record and increasing the date.
So each row has a "+" button.
When I press the "+" eg. on the 3rd row I want to navigate to this row and to execute the code in when-button-pressed trigger.
So I wrote in the when-button-pressed trigger
"GO_RECORD(:system.mouse_record);
duplicate_record;
Unfortunately :system.mouse_record is set to 1, also :system.cursor_record and :system.trigger_record.
The "Mouse Navigate" property of the button is set to "yes".
I have used the search function but didn't found a solution.
Thanks in advance,
Marco.

Marco,
My apologies, I should learn to read all of the message. I am embarrassed into having another try.
Firstly, to clarify
I am using Forms10g (sorry but it was the only one I could remove a developer from)
Duplicate_Record: Copies the value of each item in the record with the next lower sequence number to the corresponding items in the current record. The current record must not correspond to a row in the database. If it does, an error occurs.
I have setup a default block with a button on it and to test I have just executed a query against the block.
After rows have been retrieved
When I click on a button system.mouse_record always returns 0 (In the help it says this will be the case if you are not in an item, but I do not know if a button is classed as an item in the eyes of the help test author, I thought it might be, but maybe they mean a text item?) when I use :system.trigger_record I always get the right record number.
For duplicate_record to work I have to be in a "NEW" record. I appear to be able to do this in two ways.
Go to the bottom of my records + 1. The button becomes enabled and when I press it I can duplicate the record above.
I can choose "insert record" (key-crerec I think or create_record) if I do this I can then press the button and duplicate the record above into this new record.
If I press a button on a record which already has a record I presume of type QUERY then when I press the button I get FRM-41802 duplicate record function allowed on new records only.
If I do not perform a query in the block; I create the first record input data I have to move to the next record to enable the button
If I press the button it duplicates the value in the first record
If I change the value in the second record and then go back to the first and press the button on the second row it overwrites the value with the value from the first row
I hope this gives you some pointers in solving your problem.
Apologies again for not reading properly and I hope that my using 10g has not made all this info useless.

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