Hi, Libin.
Thanks for asking this question in the forum, the ".rmv" & ".vscode" configuration files are created when VS Code first activates MV BASIC extension, unless you don't want to activate MV BASIC extension in that folder, or there is no way to disable the creation of these 2 folders.
For the codeLens setting, you can update the default value from "false" to "true" if you would like to using this feature for BASIC code, thanks.
Best Regards.
Charles.