On all vehicles in the game ???????

Is there a way to open the Sandbox mode, all vehicles in the game ?????

Please try to write full sentences

Do you mean you want to be able to use all the vehicles available in the game in every year in a sandbox game?

Yes, I would like you mean it
I'm sorry for bad english :)))

I did a small mod for you. All vehicles available in 1920. Download here.

Thank you very much. Good night