The behavior of zoo commands can be influenced by the the use of zoo modifiers. When you select any zoo command button Arcgsh will display the modifiers that are available with this particular command on the right hand side of the zoo dialog box.
In principle you are free to choose any combination of modifiers. However, there are some cases where some modifiers are either mutually exclusive or have to be specified either together or not at all. Arcgsh does not check for those cases. It will leave this task to zoo.
A special field in the ``Zoo modifiers'' box is the ``Numbers'' field. You can insert any numeric parameter(s) to zoo here. This is neccessary in connection with generation limits and corrupted archives. Please refer to the zoo reference manual!