We appreciate your interest in MBC software. But, honestly, such a counting analysis is so straightforward in other software tools that you may already have on hand that it doesn't seem to make much sense to invest in MBC software with its accompanying subscription fee.
However, if you already have access to MBC software, then it is quite straightforward to do combinatorial counting analysis for your project.
The .CSV format (you can prepare this in Excel and just save to .CSV format) is:
CASEID, Choice1, Choice2, etc....Choice85
One row per respondent (since each respondent only completed one menu task, there is just one row per respondent for your study).
Make the ChoiceXX variables be coded as (1=chosen; 2=not chosen).
Open the .CSV file within MBC software. Define all variables on the variables tab as Dependent Variables. And, for each dependent variable (sorry, you have to do this by selecting each dependent variable one-at-a-time on the varibles tab) click that category 2 is the "Offstate" category.
Next, go to the Counts tab and click the option for "most frequently chosen combinations" and specify that it should report to you the top 100 combinations.
Hope this is clear and easy!