I am self-employed and over 65. I elected to stop contributing to CPP as I have already maxed out my possible benefit levels.  The model continues to deduct CPP as part of its taxes calculation.  How can I override this?

Is there a way to force splitting of joint expenses based on net worth of nonregistered investment accounts?  I have a case where current incomes for both are zero as we are drawing down on nonregistered investments.  However, one spouse has nonregistered investments 2 times higher than the other, so we'd like to draw down proportionally but TM takes 50/50.  Result is that lower spouse's nonregistered investments are depleted very quickly.  So far my only solution is to create two separate, individually owned expenses using a % I determine ahead of time.  Is there a better way to achieve my goal?