Sourcegraph Community Manager here. You can use the Sourcegraph extension for VSCode [1] that would allow you to have the structural search powered by Comby (or literal or regular expression search) inside of VSCode.
You can't do batch changes[2] inside of VSCode yet, only via the Sourcegraph CLI[3]. We're working on expanding this.
We don't have an extension for Vim yet, but you can use Sourcegraph CLI[1] in your terminal. Feel free to file a feature request[2] though, which should help bump up the prioritization of a proper Vim extension.
You can't do batch changes[2] inside of VSCode yet, only via the Sourcegraph CLI[3]. We're working on expanding this.
[1] https://marketplace.visualstudio.com/items?itemName=sourcegr... [2] https://docs.sourcegraph.com/batch_changes/explanations/intr... [3] https://docs.sourcegraph.com/cli