{live:item_id:field_id:required:function:widget_type:widget_properties}

Renders one field of an item as an in-place (live) editable widget that saves by itself the moment the editor leaves the field, with no full page reload and no surrounding form. Point it at an item id and a field id; on a published page the field shows its current value as an editable input, and an onchange handler posts the new value back over AJAX. Use the optional required, function (a JavaScript callback run after a successful save), widget_type (a 3-letter widget code such as sel or dte to override the field default) and widget_properties (a JSON object configuring that widget) parameters for finer control. Pass an empty item_id to edit the field of the current item in a loop (write _#ITEM_ID_ to be explicit). Live editing only renders for a logged-in editor with write permission and the aa-jslib script loaded; for an anonymous visitor, or an unknown item or field, it renders nothing. Related: edit and editfull render the same widget in form style, ajax gives a click-to-open inline editor, and input renders a widget for a brand-new item.