In Wintrack, the arena itself, the goal, and all other objects, reference
annuli, quadrants, release points, etc. which make up your experimental
setup are treated as fields. For each predefined type of arena,
a limited set of fields can be specified in the dialog box of the Arena
Properties command. As an alternative, the same command also reads
custom setup files. These are plain ASCII text files which in a very
flexible way can define any number of fields identified by unique field
names. custom setup files also allow to maintain several versions of
a custom setup which, for example, may be applied to different subsets
of cases in a study.