Specifying the Visible Instances

The third sheet of the Form Wizard dialog enables you to specify the instances over which your form operates.

To define the order and range of instances over which your form operates

If you want your form to operate over all instances, click the All Instances option button.
If you want your form to operate only over the instances of a specific collection, click the Instances of the collection option button and specify the required collection in the text box, as shown in the following example.
```
Company.firstInstance.customerList
```
You must specify a valid JADE language expression that specifies the instance of the required collection. The JADE compiler validates this input.

The members of the collection must be instances of the target class that you specified in the previous sheet.

Click the Next > button to affect your selection and display the next sheet.

If you select the All Instances option, the load method reads all the instances of the selected class and loads them into an object array when you run the form. For a large number of instances, this may take some time.