The Attribute Boolean is a type of attribute (as the name implies) to hold boolean values (true/false). The only specific option you'll find while editing an attribute of this type is the renderAsCheck option which is a legacy option. In a previous version of the XEO framework, boolean attributes could be rendered as a combo box (default) or as a checkbox. This option would allow you to choose the checkbox rendering, but the current version of XEO only provides the checkbox render, as such this option is deprecated.
Deprecated
No permission to view TWiki.WebTopBar