MMEx is really convenient for me and first of all, I wana thank you for it.
When using, I have defined several categories and subcategories and then I realised, that in Reports, I want graphs not for each subcategory, but for upper categories only. So, god bless to open source:), I did this little change in code, and it does what I want. And because I may not be the only person who wants this, here I'm givin you a few lines of code. For example, it would be great if I could switch between this graph and the current version in report.
$ diff MY_reportcategexp.cpp CURRENT_reportcategexp.cpp
< std::vector<ValuePair> valueListTotals;
< ValuePair vp_total;
< vp_total.label = categString;
< vp_total.amount = categtotal;