Closed Captioning using the Ospery Box

Does the Ospery box have settings to control Closed Captioning? Testing STREAM on Roku, and looks like Roku controls CC there vs. within the STREAM app. I think to switch to STREAM my spouse will need the Ospery, she uses CC on DirecTV Satellite now. It also allows setting different colors and transparency for CC, does the Ospery have that level of controlling CC?