(defun c:test ( / acblk acdoc acsel name obj processed )
 ;; Lee Mac 17.06.11

 (setq acdoc (vla-get-activedocument (vlax-get-acad-object))
       acblk (vla-get-blocks acdoc)
 )
 (if (ssget '((0 . "INSERT")(2 . "Test")))
   (progn
     (vlax-for block (setq acsel (vla-get-activeselectionset acdoc))
       (if (not (member (setq name (vla-get-name block)) processed))
         (
           (lambda ( / lst )
             (vlax-for obj (vla-item acblk name)
               (if (eq "AcDbWipeout" (vla-get-objectname obj))
                 (setq lst (cons obj lst))
               )
             )
             (if lst
               (vla-movetobottom (LM:SortentsTable (vla-item acblk name))
                 (vlax-make-variant
                   (vlax-safearray-fill
                     (vlax-make-safearray vlax-vbobject (cons 0 (1- (length lst)))) lst
                   )
                 )
               )
             )
             (setq processed (cons name processed))
           )
         )
       )
     )
     (vla-delete acsel)
     (vla-regen  acdoc acallviewports)
   )
 )
 (princ)
)

(defun LM:SortentsTable ( space / dict result ) 
 (cond
   (
     (not
       (vl-catch-all-error-p
         (setq result
           (vl-catch-all-apply 'vla-item
             (list (setq dict (vla-GetExtensionDictionary space)) "ACAD_SORTENTS")
           )
         )
       )
     )
     result
   )
   ( (vla-AddObject dict "ACAD_SORTENTS" "AcDbSortentsTable") )
 )
)
(vl-load-com) (princ)