Binary-Multi Variable Sets can be treated as waves in stat tests

The "Treat as wave in statistical tests" feature now supports Binary-Multi variable sets.

You can now toggle on wave treatment for these variable sets and get "compare to previous period" significance testing, just like Nominal, Ordinal, and Date/Time variables. The Data Preparation Agent will also automatically detect Binary-Multi wave variables and toggle the setting on.

This is particularly useful for tracking data that uses rolling averages, where each respondent belongs to multiple overlapping time periods (e.g., "Jan–Mar 2026", "Feb–Apr 2026", "Mar–May 2026").