In Moodle 1.9 you can enter the folder name and the HotPot module will detect all HP quiz files within that folder and add a "Hot Potatoes Quiz" activity for each one.
In Moodle 2.x, I'm afraid you have to create each HotPot activity individually when using the HotPot module. As reported on the following Moodle docs page, you can no longer add several HotPot activites at once:
Whether you use the HotPot module for Moodle 1.9 or 2.x, you will end up with 190 links on the course page. That's a lot of links and will be tough to navigate for both you and the students.
If I were you I would use the QuizPort module for Moodle 1.9. It allows you to add several HP quizzes as a single unit, creating only one link on the course page. Furthermore, you can add pre- and post- conditions to the quizzes so that students can be guided on a certain path through the quizzes depending on their performance; good scores zoom ahead, poor scores go more slowly.
The QuizPort module is available now, it has been around for a few years and I consider it to be a very stable piece of software. However it does not work on Moodle 2.x.
The successor to the QuizPort module will be the TaskChain module. It will work on Moodle 2.x. It is currently in the final stages of creation, but it is not finished yet. I will be finished in the next few weeks.