Combobox setValue Display Options Problem

In my application, I have a single select combobox with 20+ options. For convenience to the user, I set the value of the combobox based on user input but if the user decides to now select something different, the other options are no longer available (see https://snippet.dhtmlx.com/rdqypplb). Is there a way to use setValue and have it highlight (or similar) the item in the combobox list while still leaving the other options available?

Please, try to use the readOnly mode of the comboBox:
https://docs.dhtmlx.com/suite/combobox/api/combobox_readonly_config/
https://snippet.dhtmlx.com/jyjitt4f