Increasing or decreasing a custom property by one

Prepare yourself for the easiest question you’ve ever answered-

I have a numeric entry field that the user can enter a value into (Think between 1-150) and that value is then used to display certain information on the screen. It does this first by creating a custom property (In this case, it’s named ArrayValue) which has the configuration of this.props.value. I would like to add a button to either side of that numeric entry field, that increases or decreases the value of that custom property, ArrayValue, by one. What is a way to create these two new buttons? I have no idea why I’m struggling so much with what must be so simple that it’s going to hurt me to see the answer.

It should be as simple as placing a script on the buttons OnActionComplete event with something like:

self.getSibling("NumericEntryField").custom.ArrayValue -= 1and self.getSibling(“NumericEntryField”).custom.ArrayValue += 1