title: Cannot execute macro in Break Mode
body: <p>I am trying to write a simple macro to add 1 to the cell's current value:</p>
  
  <pre><code>Sub add()
      MsgBox Selection.Value
      Selection.Value = Selection.Value + 1
  End Sub
  </code></pre>
  
  <p>I receive the following error message when I click a (numeric) cell and try to run the macro:</p>
  
  <pre><code>Cannot Execute in Break Mode
  </code></pre>
  
  <p>What am I missing?</p>