title: how to group identical latitude and longitudes to display multiple locations in tableau
body: <p>So I have a list of LATs and LONGs with venues in a csv file. Let's say they look like this:  </p>
  
  <pre><code>+----------+-----------+---------------+-------------+--+
  | latitude | longitude | venue         | address     |  |
  +----------+-----------+---------------+-------------+--+
  | 23.123   | 44.32123  | music concert | 123 fake st |  |
  +----------+-----------+---------------+-------------+--+
  | 23.123   | 44.32123  | football      | 123 fake st |  |
  +----------+-----------+---------------+-------------+--+
  | 33.2342  | 41.2343   | theatre       | 22 red st   |  |
  +----------+-----------+---------------+-------------+--+
  | 33.2342  | 41.2343   | comedy        | 22 red st   |  |
  +----------+-----------+---------------+-------------+--+  
  </code></pre>
  
  <p>The goal is to have 2 single points in tableau, but when the user clicks on a point you can see the details or hover text showing 2 distinct venues for each point. Any ideas?</p>