Allows a variety of global settings to be modified as required by the user.

Allowable Undos - Sets the maximum number of Undo/Redo actions that are maintained. The higher the value the bigger the amount of disk space and processing time is used.
 
Analysis Mode - The analysis mode dicates how the results of are maintained.

User - The analysis must be performed manually by using the Go option.
Background - The analysis will be run automatically in the background when changes are made to ensure results are always available. Results forms are closed.
Maintain Results - The analysis will be run automatically in the background when changes are made to ensure the results are always available. Results forms are updated.

Messages and prompts - Allows the messages and prompts to be returned to the default settings. This includes the 'Do Not Show This' again messages which may have been turned off inadvertently.
 
Toolbar - The options shown on the toolbars, or a new toolbar can be set.
 
Units - Allows the user to customise the units used throughout the software to suit their needs.
 
Default Template File - Allows user to specify (browse to) and load a default  template file for structures and connections

Autosave - Allows to autosave every T (mins) interval (See Autosave - Recovery).

Show Welcome Screen - Set this checkbox to enable or disable viewing the Welcome to XPDRAINAGE on program start.