As an administrator you can select the number of columns and rows for VT, UTS and T27 sessions.
Open the Display panel.
Under Dimensions, specify the number of columns and rows you want each screen to possess. The default values are 80 columns by 24 rows.
There are some host-specific settings available:
Pages - If you are connecting to a T27 host screen, you can set the number of pages to display. The default is 2.
Clear on host change - If you are connecting to a VT host screen, select this option to clear the terminal window and move the contents to the scrollback buffer when the column size changes.
Click Save.