This little Obsidian plugin gives the possibility to paste directly inside a code block.
By default the hotkey Ctrl + Alt + V is assigned, but can be configured in the Hotkeys settings.
It's also possible to select a default language for posting, inside the configuration menu.
The source code is heavily based on: https://github.com/denolehov/obsidian-url-into-selection
In order to install this plugin, go to "Settings > Third Party Plugins > Paste into codeblock".
If you have any kind of feedback or questions, feel free to reach out via GitHub issues.