When this topic was started 3 years ago, E spent a lot more time here. Now he spends all his available time working on ACF. The only time he really comes here is when there’s a bug reported that one of the regulars around here think needs his attention.
The best way now to get his attention is to submit a new support ticket https://support.advancedcustomfields.com/new-ticket/
This may still be on the “to do” list somewhere, but other things are getting priority, for example bringing ACF up to speed with term meta, which is being added in 5.5. The must haves are taking a back seat to the would be nice if stuff.
