How to make an infoblock property both a string and a list?

Question

1C-Bitrix

Actually there is an infoblock. In it, you need to create a property of type list and at the same time leave the possibility of entering your own value. Is there a possibility to do so?

Answer 1

Make a field of type binding to infoblock elements and store options in it. You can always add a new option if needed.