I have created three similar scripts that I would like to nest/combine into one script. That way, I only have to press one button instead of three everytime I want to perform the scripts. Is this possible?

Way possible. One of the script steps is called Perform Script. When you select that, you can specify the script you want to execute.

To elaborate on Mr. Cab's suggestion, if your three scripts are labeled as A, B, and C, then you can create a script D that looks like this:

Perform Script [subscripts, "A"]

Perform Script [subscripts, "B"]

Perform Script [subscripts, "C"]

Then change one of your existing buttons to perform script D, and remove the other two.

THANKS!!! It worked beautifully!