Not sure this is possible, but I'll put it out there.
For those not familiar with SPI, its pretty much CS gets asserted, from then on each rising (or negedge depending) of clock you sample a input and an output signal until CS deasserts.
So, kinda like is done for buses, where grouping signals together makes them easier to view on the waveform, is it possible to see 8 clocks of the MOSI/MISO (the input and output serial data lines in SPI) grouped together?
There is the expression calculator, but it doesn't seem advanced enough to describe the protocol in enough detail that it could render what I'm looking for on the waveform. But, I thought I'd ask to be sure.