Thank you Ted.
That may well be my final option.
I was hoping for a software controlled power level as I already do in with the SSB signal by using the gentle (relative to an audio passband) slope of the 45Mhz filter to flatten the power output over the 80m-10m range.
But I can live with say 2 watts for tuning at 80M and 1 watt at 10M. Still very usable and low enough to safeguard the finals during tuning.