G187 P3 is a finish setting on Haas. You will want to use G187 P1 for the dynamic roughing cycles. I usually have my arc filters set at 33% cut and 67% line/arc with a tolerance of .001 and get pretty smooth tool paths with those settings.

I have the same issue on my Windows 11 computer. I talked to my reseller about it and was told he was not aware of any complaints about not seeing the box highlighted but he said very few of the companies he talks to have switched to Windows 11 yet. He was going to ask CNC Software about it but never did get back to me so I took that as not having a solution to make the box show up as highlighted.