Change questions after x copies with the same question (Support #841)

I do not understand your request.
Do you want something like that :
copies 1 to 4 : questions A & B
copies 5 to 9 : questions C & D
etc
or
copy 1 : questions A, B , C, D
copy 2 : questions E, F, G, H
etc
?

Sorry i didn't read the title. My first and not tested idea : trying to use a modulo function with the sheet number.

Thanks for your answer, but after playing around I figured out, the simplest way is to just make x different exams and then photocopy it :)

But I'll definitely will try out your suggestion as well!

Nice solution to this problem, I tried it out and it works fine!
But how would you implement it when having multiple groups of questions? So in your example grouß#1, group#2, group#3, etc.?
That would also really nice, but I have no clue, trying to figure that out for a while...

Sorry, I think I stated my question not clear enough.
In your solution, you can sample from two groups, but all groups contain all questions when I understood it correctly.
I thought of having multiple groups of questions like history, physics, biology, etc. And then sample e.g. one question from each group, so one question from biology, one from physics, one from history.
So not just having group#1 like in your script, but like group#1, group#2, group#3, etc.

Ah ok, now I fully understand these commands.. thank you!
Works well and is really easy to do so, nice!

One last question maybe to this topic:
By setting the option

noshuffle

2 ways

Before onecopy and after \begin{document} : \setdefaultgroupmode{fixed} or option package noshufflegroups.

As far as I can tell, the package noshufflegroups is in conflict with \shufflegroup{group} commands I set, but the \setdefaultgroupmode{fixed} works quite well, thanks!
I recognized that if I change sampling of the questions for every group like you suggested:

\cleargroup{all}
\copygroupfrom[1]{easy1}{all}{\thecalculate}    
\copygroupfrom[1]{easy2}{all}{\thecalculate}
\copygroupfrom[1]{easycalculations}{all}{\thecalculate}
\copygroupfrom[1]{semiothers}{all}{\thecalculate}
\copygroupfrom[1]{semiregression}{all}{\thecalculate}
\copygroupfrom[1]{semiclassification}{all}{\thecalculate}
\copygroupfrom[1]{semipreprocessing}{all}{\thecalculate}
\copygroupfrom[1]{semievaluation}{all}{\thecalculate}
\copygroupfrom[1]{hard1}{all}{\thecalculate}
\copygroupfrom[1]{hard2}{all}{\thecalculate}
\insertgroup{all}

\ifthenelse{\intcalcMod{\AMCStudentNumber}{4} = 0}
{\addtocounter{calculate}{1}}{\relax}

\ifthenelse{\thecalculate > 2 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{semiregression}}{\relax}
\ifthenelse{\thecalculate > 3 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{semiclassification}}{\relax}
\ifthenelse{\thecalculate > 4 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{easycalculations}}{\relax}
\ifthenelse{\thecalculate > 4 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{semipreprocessing}}{\relax}
\ifthenelse{\thecalculate > 7 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{hard1}}{\relax}
\ifthenelse{\thecalculate > 7 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{hard2}}{\relax}
\ifthenelse{\thecalculate > 8 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{easy1}}{\relax}
\ifthenelse{\thecalculate > 9 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{easy2}}{\relax}
\ifthenelse{\thecalculate > 9 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{semievaluation}}{\relax}
\ifthenelse{\thecalculate > 9 \AND \intcalcMod{\AMCStudentNumber}{4} = 0}{\shufflegroup{semiothers}}{\relax}

This my fault, i forgot to delete this paragraph :

Once a group is formed, it is possible to shuffle questions inside this group using the <command>\shufflegroup</command> command. For instance<programlisting>\shufflegroup{mygroup}</programlisting>

But when choosing one mode, the question get shuffled within one group of students or stay the same after reaching the last question of a group of questionss (which means that agter that, every group of students will get the same questions from this group of questions).
To prevent this, I added the code above. So that after reaching the last question of a group of questions and after a new group of students starts, the group of questions will be shuffled again.

Could you please post your file on the forum ou mail me (if confidential), if you don’t mind ?
I would like to try an idea.

I tried to make it not confidential, but still kept the answers, for example. That's why I'll send it to you via Mail and please you to treat it as confidential :)