QuickScanPro: filters (barcode) and features (view)

At the moment we use QuickScanPro 4.6 (build 8125), Production Level with a Fujitsu fi-5900 C scanner (VRS-board [VRS 4.2], USB interface).
I have the following questions on QuickScan:
1)    Is it possible to divide the main window, so that the scan-operator is able to see as well the front-side as the back-side of every sheet. If not, is there another way to see front AND back side during scanning (e.g. thumbnail size much greater than 64 x 88)?

We can`t believe that with a scan client like QuickScan it should not be possible to display 2, 4 or 8 images at once. This problem is even worse if you use a Kofax VRS board, because then in duplex mode the front pages are only visible for milliseconds (what means in practice unvisible). We read already help file in QSP but couldn`t find anything about that topic.

2)    A barcode-filter is integrated in QSP. We experienced that the filter doesn`t work in combination with the following settings:
2a) 240 dpi, duplex, scanner-maximum, output = TIFF binary (CCITT Group 4)
2b) file naming schema: Barcode Text  1 – Directory Separator 1 – Barcode Text 2 – Static Text 1 - Sheet 1 – Side Differentiator
2c) BC-Detection: BC-Detection = I25, Horizontal, Decode Symbol, 1 Zone [Percentage]: Top = 40, Left = 30, Width = 40, Hight = 12
2d) BC Naming Options: discard both sides, if no BC use previous, if multiple BC prompt for list, if invalid prompt for file name
2e) Job Separation Settings: allow BC filtering = yes, filter = “00360*”, separate when BC value changes = yes, Detect…  see 2c), when BC found discard both sides
2f) NO Image Processing, NO Batch, NO Export, NO Index, NO OCR

We suppose that the filter doesn`t work in any case. The question is why, maybe we use wrong settings?

Do you have an explanation for our problems?
Many thanks in advance for your help!