Folks sometimes conflate extensions config with interpreters, which results in a confusing error. We should have an example using the extensions config option in the configuration docs. We should also add the accepted types next to each option, for example
`color`: Whether to use colored output when printing
These features are requested in order to have any use of the dual pane mode. Currently the commands, BoltCopy etc. only supports the dest as argument. One idea is to create additional commands e.g. BoltCopyDual to automatically get the dest from the neighboring pane.