Oh, so this is not a bug. I kinda thought that overlay menu should be accessible any moment.

Sorry for disturbing then. Thanks for working on the project.

Now with the latest preview version from Anotherguest's personal page I can access to native BASS's menu by pushing the confirm key (jog-dial). But there is still no way to call ScummVM overlay menu (the one we can see in Gobliins, for example). Mashing the confirm button in Kyrandia gives no result...