The question is about groups scenarios
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 The question is about groups, in fact these are scenarios. The question is how to call (enable or disable) a group from external sources? For example, from a node, sensor or using voice control? 
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 @Clone-Tv to call the group from external, you have to use API from MyController. We do not have direct options 
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 @jkandasa 
 Wouldn't it bother you to give a solution with an API? control through an arbitrary mgtt topic is desirable, although any other options are interesting. I looked at the page with the description of the API but did not see direct HTTP links to control .. or I looked wrong?
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 @Clone-Tv Simple solution would be accessing the API directly. To turn ON- POST https://your-mc-host-or-ip:8443/mc/rest/resources/group/on
- Payload:
- [3]or- [3,4]
- group id or group ids
 
 To turn OFF- POST https://your-mc-host-or-ip:8443/mc/rest/resources/group/off
- Payload:
- [3]or- [3,4]
- group id or group ids
 
 IMPORTANT: For all the requests you should include authorizationheader as follows,- authorization: Basic YWRtaW46YWRtaW4K
- To get base64 auth string:
 # Format: username:password $ echo "admin:admin" | base64 YWRtaW46YWRtaW4KYou can get the group id by clicking the details of the group. on the address at the end you can see the group id. 
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 Thanks for your reply, this method will do. Is there no way to bind groups to mgtt topics? 
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 @Clone-Tv No, we can not control with MQTT 
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 how to use scripts in groups? where to add the name of the script file? what value should I use to turn on and off?  
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 @Clone-Tv looks like there is bug. Group will not support for Script
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 it's a shame, it's a pity that there is no such possibility ..