By using JavaScript in Automator you can change the value of selected cells in Numbers. But a little more coding you can place specific or random values in the cells, reorder them, insert data from the clipboard or even an Internet location. There are allo sorts of ways to use code like this to do things you couldn't easily do in Numbers otherwise.
Here are a variety of functions, features and tips for Mac Numbers that many Numbers users don't know about.
Learn a little bit of JavaScript by creating an Automator Quick Action to center the current window on your Mac. You can assign this to a keybard shortcut and also alter the script to position the window in other ways.