Select General in the left list.
Most of these settings do not need altering to work with Pirana.
In the Name of researcher field, enter your name.
In the Alternative data-file directory field, enter an alternative location for model input data files.
In the Prefix for models/runs (filtered out in Pirana overview) field, enter a prefix to prepend to any model or run file names.
From the Start Pirana in menu, choose what should be loaded by default in the main Pirana window when the program opens: the most Recent directory in which you were working with Pirana, the most Recent project that you had open in Pirana, or the Pirana Home directory.
Check the Automatically backup models and results (model archive) box to copy models and results to a backup folder. (Each folder containing models has a sub-folder for backup purposes.
Check the Automatically cleanup folders for model runtime box to remove runtime files after run completes.
Check the Cache model and file info on remote hosts box to save colors and model/folder information located on remote hosts into a local cache.
Check the Close console window after run finished box to close the console window automatically after a run completes.
Check the Disallow overwriting of output files once estimation is done box to only allow a run to be executed once (requiring a new model to be created in order to re-execute). When unchecked, you can re-execute the same run multiple times and Pirana will create a new subdirectory, sequentially numbered, for each run’s outputs. It will also copy the main results to the root folder directory, which makes it (the most recent results) readily available.
Check the Show model execution log from all folders box to display the icon 
.
When the icon is clicked, a list of all executed runs in all folders is displayed.
Check the Enable Pirana web server box to allow models to be run by Pirana through a web server.
Check the Use any free port box to have Pirana choose any available port.
In the Port to start web server at field, enter the port for the Pirana web server. Enter “0” to disable the Pirana web server, “-1” to automatically choose any available port, or any valid free port number.