The Batch Reduction window allows catalogs of observations to be processed and a data reduction scheme to be defined dynamically. The different steps like Bias, Dark, Flat-Field correction, etc. are optional and must be set by clicking on the option buttons located on the left side for each reduction step in the Main Panel.
The input files for the reduction are selected in the file browser.
For example on Fig. 
, pushing the 
button will apply the reduction procedure to the two files casobj.bdf
and casstd.bdf.