The Columns panel lets you control which columns are visible in the current table view and add new ones.

1. Click "Columns" in the toolbar to open the panel.
2. Use "Show all columns" or "Hide all columns" to toggle visibility in bulk.
3. Toggle the eye icon next to individual column names to show or hide them one by one.
4. Click "+ New column" to add a new column. Choose from the following types: Enrich, Formula, Write email messages, Text, Link, Number, Email, Date, Currency, Image from URL, Select, or Checkbox.