Confusions about many new nodes from Dynamo 3.0.3 for selecting elements in Revit

The brand new dynamo 3.0.3 brings new nodes for selecting elements in Revit.But there are four different nodes to do that.Any differences?

Picking involves clicking on elements without the need for marquees to my understanding.

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Yes,it’s one difference.
"Select Family Instances " and “Select Model Elements” can only use marquee.
While “Pick Family Instances” and “Pick Model Elements” can use both click and marquee.

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