Batch Job - Variables by device

[pintify]

Is your feature request related to a problem? Please describe. While working with multiple devices with very similar configuration, installation or update procedure, it is required however to create multiple jobs batch jobs even at the slightest difference.

Describe the solution you'd like A possibility to edit environmental variables on device menu so that such variables are available in Batch Jobs to enable a more powerful configuration application.

As an addition, this variables could be made available in other areas of the console or API.

[pintify]

Such feature could be also interesting by step, to ease the configuration of it, or additional features such as #2770