To manually override or enter non-capital loss carry-over amounts, you can use either the interview-style "EasyStep" mode or the "Forms" mode (available in Desktop versions). 

Option 1: EasyStep Mode (Online and Desktop)

1. Use the Find tool (magnifying glass icon) and search for "Losses."
2. Select Losses from the results and click Go.
3. On the Losses screen, check the box for Non-Capital Loss Carry Forward and select Continue.
4. Navigate through the subsequent pages until you reach the Non-Capital Loss Carry Forward entry screen.
5. Enter your revised previous year amounts in the provided fields. 
6. Place your cursor in the field that you want to override.
7. Touch any key.

You'll receive a warning message about the override.

1. Click OK to clear this warning. 
2. Press F2.

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