Dynamically updating a zone
This may change in future major releases, and code that specifies all item level values will handle major release changes better.
When active, a blue shadow border is displayed around the Timeline.
On load, the Timeline will render all items once to determine their width and height.
Keep the number of items in this configuration limited to a maximum of a few hundred items.
The function is called by the Timeline with an items' data as the first argument, the item element as the second argument and the edited data as the third argument, and must return HTML code, a string or a template as result.
When the option template is specified, the items do not need to have a field A template function used to generate the visible frame of the items.
Search for dynamically updating a zone:
The order of the items is determining the way they are stacked.