The described requirement is possible, although, it will require some customization of the widget.
To open the drop-down on focus, you will have to force search with an empty string. You could easily do that by subscribing to the focus
event of the AutoComplete input field:
autocompleteInput = $(
value = autocompleteInput.val();
autocomplete = $(
To keep the drop-down always open, you could simply prevent the close event
Note that if you have a scroll on your page, the already opened drop-down will remain fixed on the screen and will scroll down / up with the page.
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