Of course your choice should be a —> REPEATER.
-REPEATERS are DYNAMIC-ELEMENTS
-REPEATERS can be loaded MANUALLY, or AUTOMATICALY FROM DB
Are you trying to create a → GROCERY-LIST ???
If so, i even wouldn’t use DropDowns as MENU, instead also using a futher → REPEATER, which loads all STORE-ITEMS directly from your DATABASE.
Every of these ITEMS inside REPEATER has a CHECKBOX, which could be checked to add the activated ITEM into a → GROCERY-LST.
This way your user can simple generate a GROCERY-LIST.
After SUBMISSION, a second REPEATER will shown all SELECTED ITEMS ONLY.