Browser extension / userscript to add an icon to itemize a list in an answer or question on Stack Exchange

Question

I sometime wants to copy paste a list to a StackExchange question or answer:

Connect to the remote computer with IP address and password.
Once connected, press function key F8 and click "Options"
Click "Load / Save"
Click "Save As"
Choose a name which suits you and click "Save"
At the VNC Viewer : Warning about storing the password, click "Yes".

and I need to add the - at the beginning of each item of the list:

- Connect to the remote computer with IP address and password.
- Once connected, press function key F8 and click "Options"
- Click "Load / Save"
- Click "Save As"
- Choose a name which suits you and click "Save"
- At the VNC Viewer : Warning about storing the password, click "Yes".

I'm looking for a browser extension or userscript to add an icon or shortcut to do this at once.

Answer 1

Userscript

Source code: https://gist.github.com/ComFreek/9879093
Disclaimer: I am the author, however, I've created the script specifically for this question.

Compatibility

Browsers:

• Chrome 33
• Firefox 27

StackExchange sites:

• *://stackoverflow.com/*
• *://meta.stackoverflow.com/*
• *://pt.stackoverflow.com/*
  
• *://serverfault.com/*
• *://superuser.com/*
• *://askubuntu.com/*
• *://stackapps.com/*
• *://mathoverflow.net/*
  
• *://discuss.area51.stackexchange.com/*
• *://*.stackexchange.com/*

Note: the extension will not appear in the 'improvement' mode when reviewing suggested edits. This is due to the AJAX loading of the editor. Support may be added if requested.

Screenshot

How to install (Chrome)

1. Download the userscript
2. Open the extension page in Chrome
3. Drag the file onto the page
4. Confirm the installation
5. Ready

How to install (Firefox)

1. Download & install the Greasemonkey extension
2. Download the userscript
3. Drag it onto any Firefox window