Multi-selection dropdown list implementation best practice

1. How do you do a multi select dropdown?
2. What is the best UI for multi selecting from a list?
3. How many items should be in a drop down?

How do you do a multi select dropdown?

For a multi select dropdown list category, click + to add items defined in the category to set them as default. You can select one or multiple items up to six as default items. Click DONE to save the selected default items.

What is the best UI for multi selecting from a list?

A multi-select pillbox is a suitable option if the user is familiar with the list's content and knows precisely what they're searching for. By searching or simply scrolling through the list, they can quickly locate what they are looking for.

How many items should be in a drop down?

Compared to using standalone checkboxes or radio buttons, it's better to use a listbox or dropdown list when there are 5 or more items from which users can choose.