You can do the split pension in a joint or separate return. If you are doing 2 separate returns, you'll have to fill out a T1032 form for both.
For the transferring spouse, split amount will appear on line 21000, for the receiving spouse, split amount will appear on line 11600.
We invite you to consult this FAQ article on the subject:
How do I split my pension income using TurboTax?
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