Just thought I would mention that I have a new switch 'q' to the macro on my system.
This allows me to use vvq to paste text as a quote in Markdown format, like this:
Clipboard pasted as a quote in Markdown format
It should handle multiple paragraphs as well...
Warning – these are actions and will import directly into the macro currently being edited.
Paste quote.kmactions (5.6 KB)