Plotting multiple 3d scatter plot in the same figure

Hi ,

I have 2 3d scatter plots which i would like to plot in the same figure. How can I do this using plotly express?
fig = px.scatter_3d(df_eff_group,x=‘x_coord’, y=‘y_coord’,z=‘z_coord’,size=‘marker_size’,symbol=‘symbol_mark’,opacity=0.5)

fig.add_trace(px.scatter_3d(cal_new,x=‘x_coord’, y=‘y_coord’, z=‘z_coord’,size=‘marker_size’,symbol=‘symbol_mark’))

In simple terms i want to visualize both 3d scatter plots in the same figure