In Changes from Logos 7 to Logos 8 it was suggested that "The Logos 8 Go box doesn’t yet handle topics in the same way as Logos 7 did. Instead, you’ll need to enter a command such as Open Topic to love in the Go box and choose “Topic” from the Layouts suggestions." This works reasonably well in Logos 8.0, and lead to my involvement in the "Search in 8 vs 7" thread; where it was stated that it did not work in 8.1 Beta. And indeed it does not.
What is happening?
Open Topic to is primarily a Guide command, where Topic is the new one-section Guide. And it is eminently suited to having a Layout suggestion that would open the "Topic Study" layout. It could work equally well for Open Topic Guide to. But it doesn't in 8.1 Beta.