To protect your settings on Quicklaunch and only let a selection of people change or enter your settings you can add a password. 

( Settings Password Not Recommended For DEMO MODE) 

How to add a password to your settings -

Settings>License>Enable Password 

1. Enter settings - Click the Gear Icon (Shown Below) or Ctrl-Alt-S

2. Enable Password

3. Enter settings, and a screen asking for your password will show up - (AS SHOWN BELOW)