Mode is reset to default with Bulk Add

[rosanna-smith]

I'm testing loading a spreadsheet to an RO-Crate with the Bulk Add option. I set the mode to Language Data Commons, but when I load the spreadsheet with Bulk Add, it switches back to Simple RO-Crate Dataset, so it's difficult to tell if the warnings I get on loading are related to that mode or not:

Warnings
Property metadataIsPublic not defined in @context
Property allowTextIndex not defined in @context
Property language_code not defined in @context
Property speaker not defined in @context
Property pdcm:memberOf not defined in @context
Property indexableText not defined in @context
Property Annotation not defined in @context
Property partOf not defined in @context
Property annotationOf not defined in @context
Property PrimaryMaterial not defined in @context