:\ Solved.http://freesdk.crydev.net/display/SDKDO ... Flow+Graph
With the TagPoint selected in the Perspective View, right-click the main editing pane of the Flow Graph and click Add Selected Entity on the context menu.
This results in a node with no inputs/outputs. To properly get a node with the inputs needed for the mini-tutorial, add a Entity>Tagpoint node. With the new tagpoint node created, select the tagpoint in the sandbox, select the tagpoint node, right click the node's "choose entity" section, and select "assign selected entity".