The Environment Tab
There are some important settings here, along with some only for developers. We will focus on the options which can be important for all users.
Html doc directory
This refers to the folder containing the Canonical Csound Manual. If you choose View > Help Panel, and see nothing but a message like "not found!", you will have to set here the directory for the manual. Click on the browse button on the right side, and choose the folder where it is on your computer.
SADIR (Sound Analysis Directory)
You can set here the directory in which Csound will seek for analysis files like .pvx files.
SSDIR (Sound Sample Directory)
This is very useful to set a folder for sound samples, for instance used by diskin. You can then refer to the sample only by name.
SFDIR (Sound File Directory)
To specify a directory for output files. This is usually be done in the Run tab, as explained above (Output Filename).
INCDIR (Include Directory)
Specifies a directory for files which all called by the #include statement.
Favorite dir
Specifies a directory which will then appear under the menu as 'Favorites'.
Python script dir
Usually you will leave this empty so that CsoundQt links to the Python Scripts it comes with. Only specify if you build CsoundQt or want to change the scripts folder.