There is existing support for the "Page" UI control, but no support for "Tab"

Please add an item type for this which supports the creation of a tab control that can contain child groups as the pages.

The Page, type doesn't indicate that it should be in a tab control, only that they should be together, and depending on the context, could be rendered differently , i.e. provide page breaks while printing, or units to send in the context of an adaptive form.

code: tab

display: Tab

definition: Indicates that this item should be presented using a Tab Control (or similar). The children of this item would also be groups that represent each page to be displayed in the Tab (using their item.text as the tab label). If the "text" field is provided in this item, the it may be used as a heading display item to show above the Tab control.

Would also consider if there should be child concepts added for this to be included that support for the various modes of tabs: horizontal or vertical - or use another extension?

(like the choice orientation extension, but that seems to specific)