Show or hide columns
Open the View menu. Column options are grouped into Gantt Columns, Date & Time Columns, Assignment Columns, Baseline Columns and Custom Columns. Hover over a group and tick the columns you want, for example Cost, Info, % Complete or Slack. Untick a column to hide it.
For the full list in one place, use View > Manage Columns.
Create custom columns
You can name up to five custom columns, for example a "Code of Account" column.
Go to File > Settings (F8) and open the Columns tab.
Type a label for each custom column you need and choose its type, for example Text.
Tick Show In Task Properties to show the column in the task panel too.
Click Save.
Then show or hide the column from View > Custom Columns.
Related
To freeze columns while you scroll, see Locking Columns.
To compare against a saved plan, see Creating and Using Baselines.