Report parameters : How to filter the value of the selection ?

Hi, 

We use a report to create a label for quality control, printing the report some fields are automatically filled to save time like QC Number / Product Code as unique in the Quality control.

Is it possible when several data are possible to select to create a drop down on parameters or to pre-filter the selection box not to have all the database but only the data manage in this QC request ?

Ex : Want to print a label of a quality control done for a product code but have 2 different LOTs in the quality control done.

Like to choose of of the 2 to print my report, not copy paste from previous screen LOT number or selecting LOT in all LOT number available in my database.

Thanks !