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 to use multiselect in HTML?
When present, it specifies that multiple options can be selected at once. Selecting multiple options vary in different operating systems and browsers: For windows: Hold down the control (ctrl) button to select multiple options. For Mac: Hold down the command button to select multiple options.