feature request hotkey for contrast adjustment of heatmap

[kaaeefxnuujzlhn]

Hi,
could you please ad a hotkey function to adjust the contrast of the heatmap, the function the slider has, just with buttons, like move the slider to the left and to the right by one notch with pressing a button.
I would like to assign the hotkeys to my streamdeck to be able to quickly adjust the contrast when it is getting busy and orders are piling in. So I would be much quicker and I can focus on the market and would not have to fiddle arround with the slider.

Thx so much in advance,
Sebastian