Tony, the TS flattener has a rotation function built in:
https://www.teleskop-express.de/shop...-aperture.html
Teleskop-Services also have a rotating focuser adaptor which typically screws into the 2.5" R&P focuser tube and accepts the Photoline Reducer/Correctors. Not sure if they make it in 2" models but email Wolfi and ask.