Using the Subsystem Definition dialog you can either create a new subsystem or modify the existing one.
Enter a new name for the subsystem. This name is displayed in the list of subsystems on the Profiles page of the Options dialog.
Click to open the Select Color dialog. In the dialog, specify the color that should be associated with the subsystem.
Enable subsystem in current profile
If you select the check box, you make the subsystem active. This means, that all rules defined for the subsystem are applied.
If selected, the subsystem will be shown as a separate entry.
If selected, subsystem's time will be calculated within calling subsystems. The subsystem will be shown separately only in case there are no subsystems to join with.
If selected, the subsystem will be hidden. Subsystem's time will be excluded from calculations..
The table contains a set of rules defined for the current subsystem. To define a new rule, you should specify at least one prefix.
Click to add a new row to the bottom of the table.
Click to remove the whole row from the table.