The query string parameter you want is called ro
. If you click on the Media Library
folder you will see that it uses that param to scope the content editor like this:
https://mysitecore.local/sitecore/shell/Applications/Content%20Manager/Default.aspx?mo&ro=/sitecore/media%20library&he=Media%20Library&ic=Apps/32x32/Pictures.png&pa=1&pa0=sitecore%3A%2F%2Fmaster%2F%7BECB7C485-63A6-4627-9DD9-D9FDA86D9DB5%7D%3Flang%3Den%26ver%3D1&pa1&sc_bw=1&la=en
You can see in the above url that the ro
parameter is set like this:
ro=/sitecore/media%20library
Changing that to
ro=/sitecore/media%20library/Project
Now scopes the Content Editor to the Media Library/Project
folder just as you want.

Adding this to the Launch Pad
Now you can use this to add an icon in the launch pad:
- Open up the Desktop and change to the
core
database
- Open the Content Editor and go to:
/sitecore/client/Applications/Launchpad/PageSettings/Buttons
and then pick one of the sections (LaunchPad-Group
template items) to add your button too
- I'll pick
Tools
- insert a new LaunchPad-Button
item, and for the Link
field, add the link from above with the ro
parameter set to the item you want to scope the user too.
