Allow Linked custom field to link other custom field
Sometime a identical field might has a different ID between pages, or the ID is not human-readable. In these cases, I would like to add a custom field with human-readable name, then add a Linked field linking that custom field to that ID.
For example, given that a page with a “master key” field whose ID is
<label for="mk-field">Master Key:</label> <input id="mk-field" name="mk" type="text" />
I want to name the custom field as “Master Key”, since
mk aren’t particularly easy to remember what it stands for.