Scripting System Preferences - Ampersand Issue

Question

Hello,
I'm trying to make an AppleScript to quickly change a bunch of System Preferences.  I've gotten most of them set up fine, but when I attempt to click the "Users & Groups" button, AppleScript can't find it.
tell application "System Preferences"
activate
          set current pane to pane "com.apple.preference.desktopscreeneffect"
end tell
tell application "System Events"
          tell process "System Preferences"
     click button "Users & Groups" of scroll area 1 of window "System Preferences"
I think it may have something to do with the ampersand in the string, but I didn't have this problem with selecting "Security & Privacy" at another point in the code.  I've checked the UIElementInspector and it tells me that the title is indeed "Users & Groups" for the button, but it breaks the line after the ampersand like so (this doesn't happen with "Security & Privacy"):
<AXApplication: “System Preferences”>
<AXWindow: “System Preferences”>
  <AXScrollArea>
   <AXButton: “Users &
Groups”>
Thanks in advance!

Answer 1

There are two problems with your script, as presented.
First, since you select the Desktop & Screen Effect preference pane in line 3, the rest of the script is doomed to fail since there is no 'window "System Preferences" - it's now called "Desktop & Screen Saver" (or whatever your localized version is called), and there is no button to click.
Assuming you resolve that (e.g. by removing the 'set current pane...' line, the second problem is hinted at by your UIElementInspector output.
You see, there is no button called 'Users & Groups'. The actual button is called
"Users &
Groups"
- yes, there is a return after the ampersand, not a space - this isn't an issue of simple text wrapping.
Therefore you want to:
                    click button "Users &
Groups" of scroll area 1 of window "System Preferences"