Multiple Entries under Custom Field

Is there a way to add multiple fields as a selection under a Custom Field?
Example: under a custom field named “Notify Customer” -> Phone, text, email, etc:… and calendar to select date that the customer was notified.

You mean you want to have some sort of custom grid where you can keep adding more line items?

What you have now under a Custom Field, where a selection can be made from a Drop Down box, PLUS another, such as a Calendar, or even another Drop Down Box under that same Custom Field.
Thanks

Why not create two custom fields? One for dropdown list and one for the date. At the moment, you can’t make custom field appear as a calendar though.

Yes that would work for now.
Thanks