See Share control of your home - Apple Support:
To manage remote access and change permissions for a user, open the Home app on your iOS device or Mac and follow the steps below.
On your iPhone, iPad or iPod touch
- Tap . If you have multiple homes, tap Home Settings then tap a home.
- Under People, tap the person you want to edit permissions for, then choose the following:
- Control Accessories Remotely: Turn on to allow users to control your accessories from any location. Turn off to allow users to only control your accessories while they're at your home.
- Add and Edit Accessories: Turn on to allow users to add and remove accessories, scenes, automations and other users.*
3. Tap Back, then tap Done.
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