On page 69 of the DxO PhotoLab 3 - User Guide states;
You can hide the brush settings  by clicking on the Repair Tool  icon in the upper toolbar (PC)
Is there a way to hide the Repair Tool  icon? I have many images that when I zoom in to repair the dust spots, the dust spots are located under the Repair Tool . I can rotate the image to repair the spots, but would be much nicer to have a clean window to make all adjustments.