You should be able to reuse the <umb-input-multiple-text-string> component, set the value on the items property and listen for a change event to update your value.
Much like how the Multiple Textstring property-editor does it:
You should be able to reuse the <umb-input-multiple-text-string> component, set the value on the items property and listen for a change event to update your value.
Much like how the Multiple Textstring property-editor does it: