using Knime as frontend for a R package

I have a package in R, and I want to use Knime’s drag-and-drop UI for it.

I have to first select multiple mzml files from the PC and give their paths to backend in R to apply functions from that package, and then receive output on Knime.

I created a similar frontend with JavaScript using the React flow library, but now I want to create it in Knime. Please Guide. I am a newbie and have no experience with Knime.