I am writing to request assistance in replacing an autocomplete field with a multiselect on the Pega UI. The dropdown list for this field will contain a large dataset, and I would like to implement a way to filter the data based on the input of the user in order to retrieve a smaller dataset on the back-end side. This will improve the performance of the system and make the user experience more efficient.

Currently, the autocomplete field has a configuration option called "Search using data page parameter" which allows the system to search based on the user input. I am unable to find a similar solution in the multiselect field and I would like to ask for your guidance on how to achieve this functionality.

Could you please provide guidance on how to best accomplish this task or point me in the direction of any relevant documentation?

Thank you for your time and assistance.