Feature request: Omit columns

[mattitanskane]

It would be convenient to have an option to omit columns.

I had a .csv file with three columns. I needed to create .md files with first column as the filename, second column as frontmatter and the final column as unformatted content. I couldn't figure out a way to do this with the latest version.

[dzenifr]

That would be incredibly helpful. I'd love for one of my columns to be the Notes in my .md file.