An "Auto HotKey" script for adding short rhythm groups in MuseScore

I devised a short AutoHotkey script to automate the process of adding short rhythm groups of notes in MS (Windows).

It works like this once Auto HotKey (macro program) has been installed and the script is running:
Select any rest, then
Pressing "Ctrl+1" creates this:
Pressing "Ctrl+2" creates this:
Pressing "Ctrl+3" creates this:
Pressing "Ctrl+4" creates this:
Pressing "Ctrl+5" creates this:

For anyone not familiar with using AHK, here are instructions:
1. Download and install the small free program Auto Hotkey.
2. Download the attached .txt file, put it somewhere handy like on the desktop.
3. Delete the extension of this file and change it from .txt to .ahk (a warning message might appear but click OK);
3. Right-click the .ahk file and select "Edit Script" to read it (text will appear in Notepad), then close Notepad;
4. Right-click the .ahk file and select "Run Script".
5. Open any MuseScore file.
Then ......
6. Click on any rest in MS and select either Ctrl+1,Ctrl+2,Ctrl+3,Ctrl+4 or Ctrl+5.

The appropriate rhythm group will immediately be created, all notes pitched as A's. Re-pitch as necessary.
The hotkeys can be customised by editing the script, as can the actual note groups.

Here's an explanation of some AHK terms, again for the uninitiated in AHK terminology:
"SetKeyDelay,50" - this makes sure the speed of key presses is not too fast. Do not change!
"^" means "Ctrl"
"^1::" sets the "hotkey" (trigger which starts the sequence of keypresses) as "Ctrl+1"
"send" simply means "type"
"4.a3a" is the sequence of keypresses giving the rhythm group in MS
"{esc}" means the escape key. This is to turn off Step-time Note Input (delete this in the script if you'd like to continue in step-time)
"Return" stops the process.