Sage Stocktake

Does anyone know if it is possible with Sage Line 50 to import a Stock take created on spreadsheet withc code/qty/date etc and automatically overwrite the stock in hand. As far as I can see you have an Import Stock Transactions function in File/Import but it asks for a transaction type and am not sure what this is. There may be other implications as well of course like updating the audit trail - grateful for any observations