Spectral Count algorithm should have been run at least once :

1. Select the context of your choice (for which protein grouping have been executed)
2. Right-click and select Algorithms > Compute Spectral Count
3. Check/Uncheck optional parameters to compute. Then OK.

When Spectral Count algorithm execution is finished, you can retrieve results in:

• properties of every Protein Groups in that context

• the context's protein groups list