This is called "outdenting" (i.e. the opposite of indenting) and by default it does have the same keyboard shortcut as in RStudio, Shift+Tab. I see it behaving the same in both IDEs, so if you can share more details on what might be going on, that would be helpful.
In RStudio , if you type a snippet prefix (like ts ) you can insert it immediately with Shift+Tab .
In Positron , Shift+Tab is (by default) the outdent keybinding (VS Code behavior), so it won’t expand a snippet prefix the way RStudio does. Positron snippets are inserted via the VS Code-style completion/snippet system.
so how to add in R section current working dat and time ?
Ah OK, I think I understand.
Check out our documentation on snippets:
https://positron.posit.co/migrate-rstudio-snippets.html
And then check out some details on snippets in VS Code which also applies to Positron:
https://code.visualstudio.com/docs/editing/userdefinedsnippets
You can use values like CURRENT_YEAR in your user-defined snippets, similar to what is outlined here:
https://stackoverflow.com/questions/38780057/how-to-insert-current-date-time-in-vscode