Leader update text

I have this lisp that I modified from on that LeeMac wrote for me to update the text on dimensions. I was looking to make it work for leaders but I haven't got it working.

Can an option be added to set the width of the multiline text for the leader as well?

leader_update : dialog { key = "dctitle";
 spacer;  
 : list_box { label = "Notes:"; key = "lst";
              alignment = centered; fixed_height = true;
              fixed_width = true; width = 50; height = 20; }
 spacer;
 ok_cancel;
}

(defun c:leader_update ( / *error* _read )
 ;; © Lee Mac 2010
 

 (setq dcfilename  "leader_update.dcl"   ;; DCL Filename

       Strfilename "CCC_NNRDO_leader_update.txt"   ;; Data Filename
  )


 (defun *error* ( msg )
   (and dcTag (unload_dialog dcTag))
   (or (wcmatch (strcase msg) "*BREAK,*CANCEL*,*EXIT*")
       (princ (strcat "\n** Error: " msg " **")))
   (princ))


 (defun _read ( file / ofile lst nl )

   (cond (  (setq ofile (open file "r"))
        
            (while (setq nl (read-line ofile))
              (setq lst (cons nl lst)))

            (close ofile)))
 
   (reverse lst)
 )


 (cond (  (not (setq Strfilename (findfile Strfilename)))

          (princ "\n** Data File not Found **"))

       (  (not (setq StrLst (_read Strfilename)))

          (princ "\n** Data File Empty **"))

       (  (not (setq ss (ssget "_:L" '((0 . "*LEADER"))))))

       (  (<= (setq dcTag (load_dialog dcfilename)) 0)

          (princ "\n** Dialog Definition Not Found **"))

       (  (not (new_dialog "leader_update" dcTag))

          (princ "\n** Dialog Could not be Loaded **"))

       (t
          (start_list "lst")
          (mapcar (function add_list) StrLst)
          (end_list)

          (set_tile "dcltitle" "Dimension Notes")

          (setq ptr (set_tile "lst" "0"))
        
          (action_tile  "lst" "(setq ptr $value)")

          (setq dcFlag (start_dialog) dcTag (unload_dialog dcTag) Str (nth (atoi ptr) StrLst))

          (if (= 1 dcFlag)
            (
              (lambda ( i )
                (while (setq ent (ssname ss (setq i (1+ i))))
                  (entupd                     
                    (cdr
                      (assoc -1
                        (entmod
                          (subst (cons 1 (strcat str)) (assoc 1 (entget ent)) (entget ent))
                        )
                      )
                    )
                  )
                )
              )
              -1
            )

            (princ "\n*Cancel*")
          )
        )
 )
 
 (princ)
)

Thanks.

CCC_NNRDO_Leader_update.txt

leader_update.dcl

I found this lisp below at the following location:

http://lispcad.com/2012/03/add-leader-to-text-%E2%80%93-make-multileader/

Can this be modified to create an mleader based on a style when a text string is selected from the dcl window?

(defun c:mt2ml ( / oobj nobj nstrg)
 (vl-load-com)
 (setq oobj (vlax-ename->vla-object (car (nentsel "nSelect source text: "))))
 (if (= (vlax-get-property oobj 'ObjectName) "AcDbMText")
   (setq nstrg (vlax-get-property oobj 'TextString))
   (exit)
   )
 (command "_MLEADER")
 (while (= 1 (logand (getvar "CMDACTIVE") 1)) (command PAUSE))
 (setq nobj (vlax-ename->vla-object (entlast)))
 (if (= (vlax-get-property nobj 'ObjectName) "AcDbMLeader")
   (vlax-put-property nobj 'TextString nstrg)
   (exit)
   )
 (entdel (vlax-vla-object->ename oobj))
 (princ)
)

I have taken a different approach to this now. I have created blocks with leaders and the specific text I want but how do I get this lisp that LeeMac helped me with to explode the blocks on input? I have researched that I need to put star before the name but how do I do this when I can select multiple blocks?

insert_lining_leaders : dialog {                                   //*dialog name
        label = "Lining Leaders";           //*give it a label
: row {                                    //*define row
             : paragraph {                          //*define paragraph
            }                                      //*end paragraph
        }                                          //*end row
        : row {                                    //*define row
          : boxed_column {                         //*define boxex_column
            label = "Choose a Note:";               //*give it a label 
            : list_box {                         //*define popup_list
              key = "S1";                          //*give it a name
              width=100;                        //*edit_width
              fixed_width=true;               //*fixed width
 height=20;		//*Height
 fixed_height=true;		//*fixed height
              alignment = right;                   //*alignment
 multiple_select=true;
            }                                      //*end popup_list
            : spacer {                             //*define spacer
              height = 0;                          //*height
            }                                      //*end spacer
          }                                        //*end boxed_column
        }                                          //*end row
        : row {                                    //*define row
          : column {                               //*define column
            ok_cancel ;                            //*predifined OK/Cancel
            : paragraph {                          //*define paragraph
               : text_part {                        //*define more text
                label = "CCC NNRDO     v1.0.24.07.2009";           //*some more text
              }                                    //*end text
            }                                      //*end paragraph
          }                                        //*end column
        }                                          //*end row
      }                                            //*end dialog

(defun c:insert_lining_leaders (/ *error* DCHANDLE INPT OV PT RTN S1_LIST VL SUSM)

 (setq SUSM (getvar "osmode"))

 (defun *error* (msg)
   (and dcHandle (unload_dialog dcHandle))
   (and ov (mapcar 'setvar vl ov))
   (or (wcmatch (strcase msg) "*BREAK,*CANCEL*,*EXIT*")
       (princ (strcat "\n** Error: " msg " **")))
   (princ))

 (setq S1_list
  '("*** Smybols ***" 											;0
    "M115 Yield Triangle" 											;1

   )
 )

 (setq vl '("CMDECHO" "CLAYER" "OSMODE") ov (mapcar 'getvar vl))
 (setvar "attdia" 1)
 (cond (  (<= (setq dcHandle (load_dialog "insert_lining_leaders.dcl")) 0)

          (princ "\n** Dialog file not Found **"))

       (  (not (new_dialog "insert_lining_leaders" dcHandle))

          (princ "\n** Dialog Definition Not Found **"))

       (t

          (start_list "S1")
          (mapcar (function add_list) S1_list)
          (end_list)

          (set_tile "S1" (setq *def* (cond (*def*) ("1"))))

          (action_tile "S1"     "(setq *def* $value)")
        
          (action_tile "accept" "(cond ((member (atoi *def*) '(0)) (alert \"Invalid Note\"))
                                       ((done_dialog 1)))")
        
          (action_tile "cancel" "(done_dialog 0)")

          (setq rtn (start_dialog))

          (setq dcHandle (unload_dialog dcHandle))

          (if (= 1 rtn)
            (progn

              (or (tblsearch "LAYER" "CCC_SHEET_LAYOUT_Notes")
                  (entmake (list (cons 0 "LAYER")
                                 (cons 100 "AcDbSymbolTableRecord")
                                 (cons 100 "AcDbLayerTableRecord")
                                 (cons 2 "CCC_SHEET_LAYOUT_Notes")
                                 (cons 70 0)
                                 (cons 62 7)
                                 (cons 370 30))))

              (mapcar 'setvar vl '(0 "CCC_SHEET_LAYOUT_Notes" 0))

              (foreach block (mapcar
                               (function
                                 (lambda (x) (nth x S1_list)))

                               (read (strcat "(" *def* ")")))
                (setvar "osmode" 1)
                (if (setq pt (setq INPT (getpoint "\nPick Insertion Point: ")))

                  (command "_.-insert" block INPT "1" "1" "0"))))
	 	


            (princ "\n*Cancel*"))))
(setvar "osmode" SUSM)
(setvar "attdia" 0)
 (mapcar 'setvar vl ov)

(princ))