MultiselectComboBox - Vaadin Add-on Directory
Multiselection ComboBox for Vaadin FlowSupports selecting multiple items from a combo box. Uses vaadin-combobox and vaadin-input.
Based on polymer 2 version from https://github.com/gatanaso/multiselect-combo-box
See original Demo here: https://multiselect-combo-box.firebaseapp.com/demo/