Recently we have old SharePoint 2010 migrated to SharePoint Online. Of the 3 checklist items we have, only 1 would open in a new tab when we click to add new item to checklist. The other 2 checklists would open in a modular tab on the side. How can I change it so it would open in a new tab when we click to add new item in the checklist. Please help.
I don't know if it's modern or classic view. Is there a way to check?
The list settings on all checklists are the same (yes is selected). I'm very puzzling why only 1 checklist open in a new tab while the other 2 open on the right side of the page when add new item in checklist.