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20 minutes on an iMac with 3.4 GHz Core i7 processor and 16GB of main storage, with Sierra 10.12.6 and Qt 5.9.1 installed.

Note: There was no need for "make install", perhaps because I moved the initial unzipped folder to /Applications before starting the compilation process.

Mark

Thanks for creating an excellent computer program.  One of the great challenges in documenting or giving direct explanations is how much detail to include.  I have taught a few thousand (adult) students the principles of software engineering and Oracle database administration.  Whenever I get a question, I often have to restrain myself from telling the questioner everything I know about the subject.  There are two reasons why.  One, the class would be going forever.  Two, the extra detail (such as lists of exceptions to the general principles, and then exceptions to the exceptions) is very likely to overwhelm the beginning learner, leaving him confused and frustrated.  Of course, the trade-off is, if you don't warn him of the exceptions, he may encounter one, and then fail at some assignment at his job.

There is no easy answer to this dilemma.

Thanks for your patience in answering questions on the Forum, and your skill in creating the program.  As I use it more, I may find some specific suggestions.

Mark

I have a single class of students that stays together for several activities during a day, but splits up twice.  Once, the division is based on native English speakers vs. speakers whose native language is other than English.  A second time the division is based on each student making a choice from one of three possibilities (Art or Computers or Sports).  All six combinations are possible.

What is the best way to organize the students?  Six groups and no categories, or two categories (one with two choices and another with three) and no groups?  Sub-groups?  Some combination of groups and categories together?  I am confused.   

TIA for any advice you can give,

Mark

Given a set of two activities for a subject, what is the most flexible way to request that they be scheduled on consecutive days, but any two consecutive days (M-Tu, Tu-W, W-Th, or Th-F) during the week are O.K.?  The activities do not have to take place at the same time each day.

(Hopefully, the approach won't be specific to a set of two activities, because it might be a set of three or a set of four.)

TIA,

Mark

P.S.  By "most flexible" I mean the way that allows the widest range of solutions to be considered, as long as the constraint is satisfied.