How do I set up and run a parameter scan?

Open TIME MACHINE from the menu and continue through the additional-information screens. On the review screen, where you choose which calculation to run, click Parameter SCAN. This feature requires a subscription.

To create a scan, use the new-scan fields below the canned-scan choices. Enter a descriptive Name. In Select table, choose the kind of entry you want to vary, then select the particular entry and field in the next dropdown.

For example, suppose you already have an annual expense called Living expenses. To compare three amounts for that expense, select EXPENSES, then the amount field for Living expenses. Enter Starting value: 48000, step: 2000, Stop value: 52000. These are annual amounts for that expense, not monthly amounts. Enter numbers without a dollar sign.

Click Run scan. This first opens the confirmation screen; it does not start the calculations yet. In this example, the table should list $48,000, $50,000 and $52,000, followed by Current. The screen should report four TIME MACHINE runs: three variants and your original scenario. The original is listed separately even if its amount matches one variant.

Check the confirmation table before proceeding. It shows the actual values that will be used for each run.

On the confirmation screen, click Run SCAN for ordinary TIME MACHINE calculations. Choose Run SCAN with Withdrawal Optimizer if you want the withdrawal optimizer applied to the scenarios. The optimizer option involves additional calculations. When finished, the scan's results are available under SAVED RUNS & SCANS.