How can I remove all nodes in the node-red?
Right now I see only the option to remove the flows one by one by going to Menu in top right corner - Flows - Delete. That is not convenient at all, since I have a lot of flows to delete (more than 100) and I would like to do that in batch.
So, is the option to remove all flows absent or is it just hiding somewhere?
There is no built-in option to remove all flows.
You can select multiple flows by Ctrl-Clicking on the tabs, then hit the 'delete' key on your keyboard to remove them.
If you really want to delete everything, you could delete your flow file and restart Node-RED.