As you saw, the TIME MACHINE allows partial conversions of LIRAs and DCPPs. It does this by automatically allowing withdrawals from LIRAs after 65, regardless of when you set to convert it, if you want or need the money. We assume you will arrange it with your LIRA provider to make the required partial conversion to an LIF or RRSP/RRIF as allowed by your province's legislation so that the money can be withdrawn. That flexibility is usually what users want.
If you want the money, you would enter an AUTOMATIC withdrawal. People often do that to make a partial conversion to get the pension sharing and the pension tax-credit if they have no other sources of pension income. Not your case, but I need to mention it.
If you need money, the TIME MACHINE makes withdrawals from your accounts following your withdrawal PRIORITIES. You can set a limit of 0 for the LIRA account for the years before age 72 so that it will skip it and get money from accounts further down in the list instead. You will need the create a new PRIORITIES entry for the years 72 and up to allow withdrawals again.