Question BT Keyboard Function Help - Enable Special Keys

[mccmw]

Please feel free to move this to appropriate forum...I didn't see one that "fit." I have an Android streaming box and paired a BT keyboard with it. The keyboard worked fine with its predecessor, including special keys like Home, Back/Return, etc. The keyboard, touchpad, and left/right click buttons work, but the special ones don't. Is there an app I can download that will reenable these for the new box? I wasn't sure if something like Gboard or Swiftkey would enable the functions, or I need something else. Right now, the keyboard in Settings is labeled as AOSP Android keyboard. Any recommendations would be appreciated. Thanks.