title: Add marker over scatter chart plotly
body: <p>I want to add a point to a plotly scatter plot to highlight specific value.</p>
  <p>One of the ways to do it from what I have found is the following. But the issue is that new trace is placed <em>under</em> the main scatter chart. Is there any way to set the order so the &quot;level&quot; is always on top?</p>
  <pre><code>import plotly.express as px
  import numpy as np
  import pandas as pd
  from plotly import graph_objects as go
  
  data = pd.DataFrame(np.random.normal(0, 1, (5000, 2)), columns=[&quot;x&quot;, &quot;y&quot;])
  
  fig = px.scatter(data, x= &quot;x&quot;, y=&quot;y&quot;)
  
  fig.add_trace(
              go.Scatter(
                  x=[data.iloc[10, 0]],
                  y=[data.iloc[10, 1]],
                  mode=&quot;markers&quot;,
                  marker=dict(
                      color=&quot;red&quot;,
                      size=10,
                  ),
                  name=&quot;level&quot;
              )
  )
  </code></pre>