Hello, ZaniaCell ,
You can try to use it in the app as a Eelink device.
When creating unit, please choose Eelink device type in the Hardware category. – https://help.gurtam.space/en/article/how-to-create-a-unit
Then point your device to the IP and port specified in the Common Unit settings. – https://help.gurtam.space/en/article/configuring-and-deleting-a-unit
If this does not help, please write to us at firstname.lastname@example.org indicating the login, ID of the created unit and a link to this forum topic, then we can check your situation additionally and will try to help.