DESS, high energy from the grid

I am running DESS in trading mode.

If there is enough solar power (surplus) then everything is fine.
But if the solar power is less than the forecast. So DESS charges the batteries from the grid and covers the consumption from the grid even when it is not profitable. And the solar power only charges the batteries. I have disabled charging the batteries from the grid. But it still covers the consumption from the grid.
At the same time, it is never profitable to buy into the battery and then sell. It is also not profitable to cover the consumption from the grid.

How to disable the coverage of consumption from the grid if the battery is sufficiently charged.
I would expect that if the forecast does not come out, trading will simply take place only with what is available.

Does anyone have experience with node red DESS? Can this be set there?

Thank you