Can't add Generic over the air live data while using OBD

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Regarding the recent feature, in which it is possible to use OBD live data and over the air live data, there's no possibility to use an external source as over the air live data, but only Tronity. Tried to firstly connect Generic source ( for example I use an external server with an app running on home assistant) but then I can't add OBD bluetooth.
Is that a bug?