Expand "Project Setup and Directory Management" rollout  
Use [>Get Path] button to select an existing root path for the project, 
use [PM Default] to set the Root to a Sub-Directory called "Projects" in the max Root Directory, or type in a path manually.
Note that the Root Path is NOT the same as the Project Path. The Project Path will be a sub-directory of the Root Path with the same name as the Project name. This means that the FULL Project Path will consist of the Project Root and the Project Name.
Enter a Project Name in the second text field.  The project name will be used as part of file and path names and may not contain characters that would be illegal in a regular file name, esp. *, ?, dot etc.
Decide which paths should be unique for this project. 
Use the Checkboxes in front of the Asset Paths to activate the desired entries.
Press the [All On] button if you want to set all Asset Paths.
Use the [>Scenes] etc. buttons if you want to pick existing paths from disk.
Enter just a single directory name (e.g. "scenes") to create an Asset Path bellow the Project Path.
Press [MAX Default] if you want to reset to the value used by max when Project Manager was first installed.
Press [PM Default] if you want to quickly set the typical directory name suggested by Project Manager.
NOTE: The current release of Project Manager does NOT support non-mapped network paths. To access files over the network, please map the path to a drive letter first.
Press the [CREATE] button to create the Project. The results of the Project Creation will be reported in the Project Manager Log window.
NOTE that it is allowed to have multiple Projects with the same name using different Root Paths. When the combination of Root Path and Name already exists, no Project will be created. 
Project manager will attempt to create every Asset Path specified for the Project. When the Path already exists, no changes will be made and the existing Path will be used.

Go to  "Browse Projects" rollout.   
Select an existing Project from the drop-down list   
Expand "Project Setup and Directory Management" rollout NOTE that all settings of the Project have been loaded, including Path,Name and Asset Paths.
Change the Asset Paths as you wish - enter new paths, change the state of checkboxes, reset back to MAX or PM Defaults etc.   
Press the [UPDATE] button to perform the changes. Changing the Path or Name of the Project is not supported when updating the Project.
To RENAME an existing Project, please create a CLONE of the Project definition with a new name.  (see bellow)

Go to  "Browse Projects" rollout. You can resize the ProMan floater vertically to see both rollouts at the same time. The new size will be stored in the preferences and will be used until you change it again.
Select an existing Project from the drop-down list When selecting a project from the list, its Path,Name and Asset Paths will be updated in the Directory Management rollout automatically. 
Expand "Project Setup and Directory Management" rollout  
Change the Path and / or the Name of the Project to specify a new Root location.
Optionally, change any Asset Paths as needed.
You have to set either a new Project Path, or a new Project Name. It is allowed to have the same Project Name at different Paths, and you can have as many Projects under the same Root Path as you want. Trying to create a project without changing neither Path nor Name will not change anything - the Log will warn you the Project already exists.
Press the [CREATE] button.  A new Project with a new Name, but with the settings of the selected Project will be created.

Crash Max! Hopefully your system will make this task the hardest of all ;o)
Restart Max.  
Launch Project Manager by pressing the button.  
In  "Browse Projects" rollout, click [AUTOBACK] to browse latest Autoback files. In case MAX was set to save Autoback files, there should be a recent version of your crashed scene. ProMan_Monitor has stored the original filename of the scene inside the file before saving it.
Press [Modified] to sort files by Date, [Modified-Newest] The latest Autoback file should appear on top when sorting by Modified-Newest.
Select the latest Autoback file in the File Browser window You can of course "revive" ANY file if you know which one you need.
In the File Operations window, Double-Click [Open and Rename] operation. The Autoback file will be loaded in MAX, then the original file path and name (if available) will be extracted and the scene will be stored back to its original location, but with the extensions _BAKnn, where nn is a sequential number. If you revive the same scene multiple times, each new file will have a higher number in order to avoid overwriting.

Go to  "Browse Projects" rollout.   
Optionally, select the Project the WAV file belongs to. Note that the WAV file must not necessarily belong to the current Project. If the [Change Paths] button is not checked, you can browse any Assets of any available Projects. In the case of WAV files, you can also use them in the current scene without having them located in the current Project.
Click [SOUND] to browse for WAV files in the currently selected Project.   
Select WAV files in the File Browser window and Double-click them to play them. The registered Windows application for WAV files playback (such as Media Player, WinAmp etc.) will be launched. 
Once you have found the desired file, select and Double-click "Load As Sound Track" in the File Options window. The selected file will be loaded as Sound Track in the TrackView and TrackBar.
The TrackBar will be switched to show the Waveform.
NOTE that due to a bug in MAXScript, the waveform might appear on top of the keys instead in a separate area. Hitting the 2 keys twice (or updating the UI in any other way) will restore the UI as expected.