In many cases the ACV value is provided in your report to the client with the building valuation attached and not as a separate valuation.

For example you apply the depreciation based on the age and condition of the dwelling. RCV = $260,000.00
Depreciation = $30,000.00
ACV = $230,000.00

DYK: You can create an estimate from the valuation. Using the "save as" and save as an estimate.  This will give you a stick built estimate based on the parameters you entered in the valuation, could be good for total losses or slab claims. (apply depreciation and you will get a ACV value and just print the summary page for a report) 

If Im Understanding you correctly Malvi, this is the solution!

Write the estimate, Apply your RCV, and when the estimate is done, and properly depreciated Go to the Print tab (The Icon up top right of screen that looks like a printer) and choose in the dropdown box choose "FINAL DRAFT SEPERATE COVERAGE TYPE" report, and it will Show your RCV, and ACV Line Item By Line Item detailed including your total RCV and ACV.

Hope this helps.............. AND FYI, Write the Estimate WITHOUT Applying Depreciation, When Done with the ROOM, Go to the room tree item, RIGHT CLICK on the room, it will bring up a box and scroll down to DEPRECIATION, and you can properly apply depreciation to all line items without including non depreciable items.