I overwrote my toolset view template. Is there an automatic revision from wordpress or toolset like in the posts/pages to backup my previous view?
No, there is no automatic revision of Views. If you have an automatic backup of your database from before the overwrite, you could find the View contents in the postmeta table by searching for the View ID in the post_id column. The postmeta key is "_wpv_layout_settings", and it will include the contents of the View.
ok, thanks for your answer. This is a bit sad. I have to make the view totally new...
Another question: How can I remove the post title here: hidden link (DGO146)
I designed the Layout with the Divi Builder but there is no module with the post title...
I can see how View backups and revisions would be really useful. If you'd like to see that added to the software, I encourage you to submit a new ticket here in the forum using the "Suggest an improvement" option. These ideas get added to the list at https://toolset.com/feature-request, and other users can vote on how important each improvement would be for their projects. It's the best way to try to get a new feature added to our system.
We have a one topic per ticket policy, so I'll address your question about the post title in another ticket I split off here: https://toolset.com/forums/topic/how-to-remove-post-title-in-divi-template/