Studio 192: audio output 1-4 muted unless using speaker management: how to get past this

QUOTE from point 4: *** NOTE: Leave Speaker Management to OFF. If you select any other choice and "then" back to OFF, this will "MUTE" Mix 1/2 and Mix 3/4, which could explain why your Line Outputs 1-4 will not pass audio.

How do I get back to a situation that I can decide what to send to Line Outputs 1-4?

I was using Studio One, and have two stereo signals routed to Outputs 1,2 and 3,4 via Two Stereo Sends. It worked.

After trying out Speaker Management, I can't make it work again. The send receive sound but don't seem to send it to the speakers.

Kindly,

Hendrik