Adding data into a custom table through a report transaction

Is it possible to add data into a table through a report transaction. I have been asked to create a report in which when we add certain data in the selkection screen it updates thoses particular fields and the rest of the records can be fille dout in the output. Basically I have a customised allocation table called zalloc. I have to create a report with selection screen having receiving plant, material document of the original transfer psoting , issuning plant , line item number , batch, receiving and issuning storage location. I need to validate this against the mseg table and whatever entry I make in teh selection screen should update my zalloc table from here.

Can anyone help me with this please.

Thanks