R circos - inner and outer ring

Dear community,
I like the circos plots a lot.
However, what I have not seen so far is that one could set an outer and an inner ring.
E.g. one could display tow bacteria chromosomes showing anchors between them and rotate them.
So far one can only handle this by showing the two chromosomes in the same ring and show the anchors in the middle.
Maybe someone would know how to create it with plotly, inner and outer ring or even multiple rings.