Multi-PickButton MaxScript Code

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 --This code will demo how to use my multi-pick-button.
 --Works like normal pick button, but allows you to select multiple objects.
 --
 -- ***************************************************************************
 -- ***************************************************************************
 -- Want more free scripts?: http://www.youtube.com/user/PolygonRunner   ******
 -- ***************************************************************************
 -- ***************************************************************************

 rollout MainRollout "Multi-PickButton Demo"(
  local RV_ArrayNodes = #(); --Array of nodes selected by button ArrayPick
  
  button ArrayPick "Select Objects, THEN click me.";
  
  --The list box displays what you currently have selected by the ArrayPick button.
  listbox LB01 "Influencing Objs" 
      height:5;      --5 lines tall.
         ReadOnly:True; --Read Only List.

  --Control for MULTI-OBJECT PICK BUTTON
  on ArrayPick Pressed do(
   if selection.count == 0 then(
    if(LB01.items.count==0)then(
     ArrayPick.Caption = "LIST EMPTY";
    )else(
     ArrayPick.Caption = "List Unchanged";
    )--[x]
   )else(
    MSTAT = #no; --Do not append;
    if (LB01.items.count > 0)then(
     mstatText = "";
     mstatText = mstatText + "[YES]: Append to previous selection." + "\n";
     mstatText = mstatText + "[NO]: Replace old selection." + "\n";
     mstatText = mstatText + "[CANCEL]: Don't do anything." + "\n";
     MSTAT = yesNoCancelBox mstatText \
          title:"Append or Replace?" beep:False;
     print(MSTAT);
    )--[x]
    
    if (MSTAT!=#cancel)then(
     nodeNameArray = #();
     
     --If #no: Create New Selection.
     if(MSTAT==#no)then(
      RV_ArrayNodes = #();
      for i = 1 to selection.count do(
       nodeNameArray[i] = selection[i].name;
       RV_ArrayNodes[i] = selection[i];
      )--[X]
      ArrayPick.Caption = "List Populated";
      LB01.items = nodeNameArray;
      print("Rv array nodes===" + RV_ArrayNodes as string);
     )--[#no]
     
     --If #yes: Append to Original selection.
     if(MSTAT==#yes)then(
      nodeNameArray = LB01.items;
      for i = 1 to selection.count do(
       APN = appendIfUnique RV_ArrayNodes selection[i];
       if(APN)then(append nodeNameArray selection[i].name);
      )--[X]
      ArrayPick.Caption = "List Appended To";
      LB01.items = nodeNameArray;
      print("Rv array nodes===" + RV_ArrayNodes as string);
      
     )--[#yes]
    )--[MSTAT!=#cancel]
   )--[Selection.count]
  )--[ArrayPick Pressed]
 )--[End Rollout]
 CreateDialog MainRollout;
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