Can't unwrap phase display

[JLM1948]

I'm working on a 4-pole All-Pass filter, for which I want to display phase continuously.
I tried to usz "Fit to data", but apparently it didn't do what I wanted, so I tried forcing manually the limits, which doesn't work either.
Please find attached the measurement data files, the limits dialog and the resulting graphs.

 

[John Mulcahy]

The buttons to wrap/unwrap phase are in the graph controls.

 

[JLM1948]

OK, got it.
It works on my bench . I don't suppose there's a possibility to produce a graph of the phase delta vs. fequency...? Not terribly important anyway. Thanks for your help.

 

[John Mulcahy]

Did you mean phase delay? No, there isn't a graph of phase delay, it doesn't seem very useful, to me at least.

 

[JLM1948]

I really meant display. The circuit I'm testing is a constant-90° phase shifter. Indeed, the Relative level and phase panel gave me confirmation of expected operation.
A graph is somewhat useful, though, in that particular case.
Check https://www.proaudiodesignforum.com/forum/php/viewtopic.php?p=17139#p17139