Where are the device variables and how to edit them

[Gavorn]

Hello,
I am trying to implement an extension that would allow the user to import from a txt file new variables for an automaton and automaticaly create the corresponding channels. The rows in the txt file contains the following :
[adress on the automaton side]/[name of the variable]/[type]/[comment].

The idea is to compare the variables from the txt file to the one already present in the device and allow the user to chose which one they want to keep.

The problems I am currently facing is that I do not understand how the devices are created, are the variables stored somwhere?

[Mikhail]

Hello,
Your extension should modify the project object. Please check the project classes here. Two existing extensions create devices and channels: ExtCommConfig and ExtWirenBoard. Use them as examples.

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