In previous versions of Houdini you could select edges in Houdini by:

press s to evoke select tool
press 3 to select edges
click on an edge
use f to march forward, r to rotate, l to select the entire loop

This functionality seems to be gone now? A little lost on how to model without it.

https://www.sidefx.com/index.php?option=com_content&task=view&id=3023&Itemid=404 [sidefx.com]

PS. At the top of this website: Learning > H14 Tutorials > Modelling

Thanks, edward.

Just in case anyone comes across this forum post like I did. How you select edge loops(H17) is hold A and middle mouse button click.
https://www.sidefx.com/tutorials/edge-loop-selection/ [www.sidefx.com]