A colleague pointed out the XPM documentation suggests outputting an empty TCDL tag allows authors the ability to edit fields which are not rendered.
<!-- TemplateBeginIf cond="CollectionLength('Field.Values') == 0" -->
<tcdl:ComponentField name="${Field.Name}"></tcdl:ComponentField>
<!-- TemplateEndIf -->
@@FieldStartMarker(Fields.Address.HouseNumberAddition)@@
@@FieldValueStartMarker()@@
@@FieldValueEndMarker()@@
@@FieldEndMarker()@@
What's the equivalent XPM inline editing comment syntax for these?
I'm posting an example below for reference. We've seen questions on making empty fields editable (https://stackoverflow.com/q/12050672/395495), but I wasn't sure of the JSON comment syntax.