title: ms project : issue in wbs number reset
body: <p>I have project schedule as below. I need start wbs from number 1 from kick-off meeting. Till Kick-off, I used customised wbs code, ie M1,M2,M3,M4. it is working. From from kick-off meeting on wards I need to start 1 1.1 1.2, 2, 2.1, 2.2 etc</p>
  
  <p><strong>Existing schedule</strong></p>
  
  <pre><code>WBS  Task name
  1 M1: Milestone1
  2 M2: Milestone2
  3 M3: Milestone3
  4 M4: Milestone4
  5 Kick-off meeting
  6 Requirement
     6.1. Requirement collection
     6.2. Requirement priority
     6.3. Finalise requirements
  7 Design
     7.1 High level design
     7.2 Low level design
  8 Implementation
     8.1 coding
     8.2 code review
  9 Testing
     9.1 Test plan
     9.2 Test case preparation
     9.3 Start Testing
  10 Delivery
     10.1 Deliver to customer
     10.2 Release resource
  </code></pre>
  
  <p>I need to change above WBS with wbs code as below. </p>
  
  <p><strong>Expected schedule</strong></p>
  
  <pre><code>WBS  Task name
  M1: Milestone1
  M2: Milestone2
  M3: Milestone3
  M4: Milestone4
  1 Kick-off meeting
  2 Requirement
     2.1. Requirement collection
     2.2. Requirement priority
     2.3. Finalise requirements
  3 Design
     3.1 High level design
     3.2 Low level design
  4 Implementation
     4.1 coding
     4.2 code review
  5 Testing
     5.1 Test plan
     5.2 Test case preparation
     5.3 Start Testing
  6 Delivery
     6.1 Deliver to customer
     6.2 Release resource
  </code></pre>
  
  <p>I tried with Project --> wbS -> Define code and Renumber, but both are not working.</p>