As you probably need to have more than one alternative design per project, and for each design, several revisions, this all adds up to many files. In order to keep all these files in an organized manner the following scheme is proposed:
First of all, you need to keep all your files under a master subdirectory that bears the name of the "Pro-Designer" software you are using and the version number. This is very important in case you later upgrade to a newer version or to SuperPro Designer, you need to keep the files separate. Under the master directory is a good place to keep your Master Process file (if you need to have one - see section 10.4). As you start a new project, you should create a new directory with a name bearing the name of the project. Chances are, you are going to be working on several projects, and you definitely need to keep the files for each project separate. As you focus on a specific project (e.g. Project-X), use that directory as the container of a Seed Process file. As you will probably have to deal with more than one alternative design for each project (named "Plant-X1", "Plant-X2", etc. in the figure above), it is suggested that you create a separate subdirectory for each. You can start each alternative design by copying the entire seed process file into the corresponding subdirectory. Typically, the seed process will be void of any procedures or streams. Proceed by gradually adding the processing elements that compose your suggested configuration, making sure you save the design under several names (labeled "Revision-1", "Revision-2", etc. in the figure above) before you have added all the steps in your final revision. It is a good practice to keep ample comments as you progress from one revision to another documenting some of your decisions. Use the "Comments" field of the Process Description Dialog, as the storage area for all such explanations.
NOTE:
The above organization scheme should be considered as merely a suggestion and by no means a requirement in order for any of the Pro-Designer software to function properly.