This section explains how to select all smoothly connected faces or edges using the Tab key.
Procedure:
[1] From the Selection Filter at the bottom right of the screen, select [Face] or [Edge].
[2] Left-click on the desired face, then press the Tab key.
All smoothly connected faces will be selected.

This function also works when the [Edge] selection filter is active.
Please refer to the video below.
IC-136