When you scan with the TWAIN Data Source, now, it sends only 1 image, taken from its directory.
The idea of the improvement is the possibility of configure a directory from where the DS reads every image in the folder and transfer them as scanned pages.
The current method of setting the number of images in the ADF is by setting an Environment variable CAP_XFERCOUNT to the number of pages
My suggestion is that you can add the possibility to set (choose, configure) some directory and the data source take the images from there and returns the images as if they had been scanned.