The Select Data Type and Nodes dialogue is used to create visualization nodes across the selected nodes. First select the map node or a processing or inversion node, then click Model Quality.
Next select the desired datatype in the dropdown in the lower left corner. The left box shows all the Nodes/Data sets in the workspace corresponding to the selected datatype, i.e. AEM nodes. When a Node is selected in the left box, all inversion or models for the node are shown in the right box. For inversions, be sure to select nodes that are inverted in the same way, e.g. with the same number of layers.
Select one or more Data or Inversion node by clicking on them (Use Shift+click or Ctrl+click to select more nodes).
Use Filter to show only Data/Inversion nodes with names containing a certain word.