No idle throttle lever

[Wendttr]

Just got a 1979 Evinrude 55hp on a used boat
It starts and runs great but I am looking to the day when it gets finicky and I need to give it a little gas while in neutral. There is no switch or lever to allow a little throttle while in neutral, I've been around boats for 40 yrs and have never not had a lift throttle or release button to push lever forward while not putting it in forward.

[boats.net]

Not sure what control box you have but the Evinrude single lever side mount boxes have a throttle lever on top, two lever boxes just advance throttle lever, flush mounted or binnacle mount controls have a button in center of lever or button on top of box to disengage shifter to allow throttle only.