Need a separate "Labels and Values" on the connect dropdown list items.

Currently, on the “Connect dropdown list items” only able to choose a field for both “Labels and Values”. I really need to have it available end-users to have one field for “Labels”, another field for “Values”. I know there’s a way to do it in Wix code and I tried and failed miserably. I’ve posted on the forum for help but not going anywhere. Please add this feature for those who doesn’t know who to code like myself. Thanks a lot!