Trying to display google drive in the folder tree

Hi,
I'm using DO already some time, but only the very very basic functions.
Basically, today I started to realize how powerful it is, but the possibilities are a bit too overwhelming for me.

Today I searched the forum and the (really big) manual to find out how to customize your folder tree.
Unfortunately, I'm searching already some hours after an answer but didn't find it.
So here's my problem:

I've installed google drive (with default installation) on my PC (Win 7 64bit).
The only thing I would like to achieve is to make a customized folder tree, were I can see in 1 folder tree list:
[]my drives
[
]my network drives
[]my google drive (which is a synchronized folder under the C: Drive)
[
]and some ftp drives

Google drive is installed under the users folder on the C: drive. That parent (user)folder is locked by default.

Question is now:
Is there any way, that all these drives are neatly listed under each other in the folder tree without any other thing displayed in that tree?
if yes, how do I achieve that?

Thanks in advance,

You can turn things on and off in the tree via Preferences / Folder Tree / Appearance.

The exact order and nesting of those things cannot be changed, except where there are options within that page and the one after it.

Thanks for the explanation.
Only problem is: Google drive folder does not show up... nowhere.
The only solution I found was to add the folder to a library , but that is not what I'm really looking for.
I want it to stand there in the folder tree, as a stand alone folder or drive next/before the other drives, so it is directly accessible.
Is that achievable?

You can map a drive letter to any folder using the subst command, if you are comfortable using the Windows command prompt.