I have the content:

 Columns └─ Column └─ Group └─ Accordion 

But I dont need the columns. The admin of my site made a two column page the default format, but the second column has just been useless for my case. Is there a way to remove the column section and just keep the group? I've tried copy and paste methods, but nothing seems to get what I want. I'm still new to WordPress, so it may be easy but I'm screwing it up. TIA.