Views add a blank attachment

Seems this should be an obvious question (but after much searching I can’t find the obvious answer).

I’m using attachments in Views, but adding a new attachment clones the main/master page, so the attachment contains all the master view fields. I want to start building a blank attachment and don’t want to have to delete all cloned fields and other settings/relationships/contexts etc., one-by-one. I have many attachments ahead of me so I’m hoping I can avoid this tedious cleansing process for each one.

Am I missing a step somewhere where I’m offered an option to create a blank or populated attachment to my View?

Thanks in advance.

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