Connect WhatsApp to pick groups live, or upload a chat backup.
Link your number, then pick which groups to track. Only the groups you choose are stored — DMs and other groups are dropped on arrival.
A WhatsApp chat export (the .zip from WhatsApp → Export chat). Ready in a minute.
Self-hosted — connect your local proxy (it sits in front of your own Evolution). Paste its endpoint and APPKEY — only the groups you whitelisted in the proxy are visible, and only the ones you pick here are tracked.