Controlling checkbox

I'm working through the tutorial at ExtensionsCatalog

I have a couple of Items (fields) that will be given values programmatically so I want those Items hidden from the user.
When defining an Item the tutorial says "controlling checkbox (hides field below this checkbox)."

On the Item definition form I have made the Item Type = Checkbox but the Controlling checkbox drop down list remains at "-"

Strangely when defining another Item (field) I noticed that the drop down list gave an Controlling option (when I didn't need it and it wasn't a check box type item)

How do I get the drop down list to give the controlling option or have I misunderstood what this feature is?

Thanks for reading

This feature ONLY works in the BE, NOT the FE. The actual FE visibility has only been implemented in the new Alpha release.

1. You have to create a checkbox field in your catalog (e.g. "Add Printer") that will control the visibility of a sub-section of fields (1 or more additional fields).
2. Then create/edit all the sub-fields and select the above controlling field from the drop-down - each of these would then remain invisible until the control checkbox is click-checked (BE only in the current release, BE/FE in the new Alpha).

The new alpha also has a field-type where you can set a controlling parent, e.g. if you select 1 field from a drop-down, then the BE reloads and changes the "sub" field and shows only those values with a parent.

Many thanks thyon. That's clearer now. I shall try it when I get home.

Looking forward to the new release and having the facility on the FE. Meanwhile I guess I can add a bit of javascript to hide the fields (provided they and the labels are named).