I use REW on a Windows laptop, connected by a HDMI cable to an unused port. To test all the lower level speakers you need to use the ASIO4ALL option - the standard Java setup only does stereo. Even ASIO4ALL doesn't do height speakers.
REW has a signal generator which provides all sorts of test tones, an SPL meter and oscilloscope. Dunno what I'd do without it.
REW is free software for room acoustic measurement, loudspeaker measurement and audio device measurement and analysis
Also runs on Mac, though they didn't have a version for my M1 MacBook when I last looked.