How to select same item from multiselect multiple times?

The solution here is not really a solution because I don’t know in advance how many times I want to be selecting the same thing.

The use case is I’m trying to sequence a list of object and the ordering does matter.

Every solution out there like draggable and sortables removes the original list after appending the new list.

My current solution is to create a text input and literally type in the list of sequence.