ASUS ROG Connect Plus installed does not need to have GUI, when you press the Level Up button on OC Panel it will load up the Asus Auto profiles from the Bios you can see for a 4770k its 4.2 / 4.4 / 4.6.
I do not use anything to do with ASUS ROG Connect or ASUS ROG Connect Plus or its button on Rear of Mobo I/O but without this App installed you cannot use the OC Panel to OC using the Level Up button.
AFAIK it does not load up the ones you can make/save, so basically a waste of time as my 4770k is so bad it cannot even do those clocks.