The minimized version is what we call a "docked" node, just hit "D" on your keyboard to dock/undock a node. This cannot be used on nodes alone, only when connected to something else.
sometimes when i plug an rgb output in to a greyscale input itll automatically create a greyscale conversion node which is smaller than normal and attached directly to the input. Is there any way i can do this manually? I would like to do it for gradient maps as well. also, is there a way i can minimize nodes like that…