Hello @tibs,
It will certainly be difficult for someone in the stage to hear your talkback while the Signal Generator is being outputted from the same speaker.
I don’t believe this to be implemented as a feature in the future, as it is intended to function this way.
The Talk button can be used in Latch or Momentary mode, and will overwrite the current signal on the mix only for the time of the Talkback being used.
You can have the signal generator being sent to the monitor, and then activate the talkback by pressing the Talkback key only for the duration of your message, which will overwrite the signal generator only for the duration of the key being pressed, when the key gets released, the talkback shall be disabled and the signal generator will continue being outputted as normal right away.
Cheers,
Rafael