Alignment tool to adjust and sum woofer & port levels in REW Mac - pro upgrade?

I'm new to REW and successfully making nearfield and farfield measurements to baseline some speakers prior to tracking mods. Following napilopez's good guide in Audio Science Review for quasi-anechoic measurements. My speaker is a mini-monitor with a 6.25" nominal woofer and two 0.5" ports that flare to 0.75." I am ready to apply offsets to align near field LF SPL plots of ports and woofer and then plot the aligned sum, which I will then want to splice into my 1 M farfield trace. Napilopez's guide shows an REW "alignment tool" under the controls menu with several available actions including sliders/text fields to apply offset for the port SPLs and a summing button. I don't see any of those things under the controls menu on my free copy for the Mac. Is this a Windows-only feature, a pro upgrade feature (happy to upgrade if so), or am I looking in the wrong place?

Also, how do I work with the three separate traces in the one window to do this manipulation? Napilopez shows a screen shot but doesn't say how the traces got there. Does the overlay window work for this if the alignment tool is present, or do I treat them as multiple inputs (I'd prefer not to do the measurement again if I can avoid it)?

Thanks for any insight!

- couch

Thank you! I see it now, and the three traces of interest appear concurrently as desired. And my compliments on a wonderful application.

I have now created the aligned sum trace from the woofer and ports, and am ready to apply the compensating offset from the baffle diffraction, as provided by Jeff Bagby's Baffle Diffraction and Boundary Simulator tool. However, that Excel workbook uses ActiveX, which is not available on the Mac (my platform) and is in any case deprecated for security reasons. Can someone recommend a way (either another application that can generate a curve usable directly by REW, or a step-by-step procedure to create the compensation manually, either in another application whose outputs can be entered in REW, or in REW directly? Thanks in advance for any suggestions.