I have one challenge that I need help with.  It relates to getting the latest revision block's rev number or letter and revision date.  The revision blocks will be the same name, but the revision letter or number (A,B,C,D,0,1,2,3,4,5) would be in the block.  So assuming that there's 3 blocks (all named RevblockA) and attribute tag "#" and revision date tag "DATE", how can I obtain the highest rev and date, if it exists and update the dwgprops field for KEYWORDS (for Rev #) and COMMENTS (For Rev Date), respectively?