Ability To Change Tempo With Up Down Arrows

I come to Studio One with a guitar idea and I need to get the tempo feel right by playing to the click. Using the pad on my laptop sucks because it doesn't raise or lower in small enough exact incriments. It's like trying to change the volume in your car on a bumpy road. And entering a number and hitting the enter key sucks when you are searching for that right tempo feel. I would love to be able to just highlight the number in the tempo box and be able to just tap the up/down key to get the number to move by what value I have it set to move by. Single whole numbers or 1/10th of a number. Nothing ruins the mood of starting to create a song than not being able to simply "tap a tap a tap a" the tempo up or down efficiently, quickly, and accurately. Thanks, AL