https://www.nukepedia.com/python/ui/w_hotbox
W_hotbox is basically a fully customisable ‘favourites menu’ that pops up for as long as you press the shortcut and disappears as soon as you release. The buttons that make up the menu represent python scripts and change depending on you selection. The ‘Hotbox Manager’ offers you an user friendly interface which allows you to add new buttons on the fly. Those buttons are directly accessible via buttons that appear in the menu under your cursor.