Secure or hide Settings/Preferences

Hello,

I'm quite new to LMS. For testing I installed LMS on a Win7 notebook and squeezelite on a raspberry pi.
This worked quite fine.

Now what I look for is a way to secure my LMS settings from beeing changed when using the browser interface.
What I found out so far is that you can set a user and password to log in to the browser interface. But once logged in all settings seem to be accessible.
Is there a way to set an additional password for changing the settings?
So for example I want friends who visit me to be able to choose the music, but I don't want them to access the settings. Is this possible?

Thanks and greetings

maitsch