Pisound missing from i2s DAC list


I’m setting up an audio player with a rpi 3b+, a blokas pisound audio hat, and the latest version of Volumio. The problem I am having is that pisound is not an option in the drop down menu for the I2S DAC model selection.

This is a clean install with no modifications and was expecting it to be available. Any ideas on how to make it available and enable it? Looked through the V3 readme but did not see any info about pisound.


See here: