That feature control frame stuff has been there a long time. But I've frankly never completely understood how it's supposed to be used in callouts nor do I use it. Cut and paste I guess but it just seemed redundant. I mean the same things are available in the general tab of the callout properties. It's a way to grab those hole properties but I've always used the modifier options in the dimension bar to add GDT symbology and the FCF from annotation tab.
I don't think you can construct a FCF from a callout since there is no divider offered and it doesn't put in horizontal lines to enclose it. It's just for feature callouts.
I must be missing something. Other than the format button in ST8 I am not seeing anything different.
This is ST7:
This is ST8:
The special characters are ANSI symbols for things like counterbore, countersink, depth, etc. These are not GD&T symbols.
That's true. A few could be confused as such. My bad for not realizing.