Completely different question also should be addressed in separate forum threads (with meaningful title).
Anyway, I will answer the question (and close the thread):
the answer, is as always given in the wiki https://hashcat.net/wiki/ (and also uncountable number of times in the forum):
https://hashcat.net/wiki/doku.php?id=hccap
yes you just concatenate the singe .hccap files. There are even the commands for windows/linux in the wiki
Anyway, I will answer the question (and close the thread):
the answer, is as always given in the wiki https://hashcat.net/wiki/ (and also uncountable number of times in the forum):
https://hashcat.net/wiki/doku.php?id=hccap
yes you just concatenate the singe .hccap files. There are even the commands for windows/linux in the wiki