You need to put your forum into "debug mode" to add options and such.
https://vborg.vbsupport.ru/showthread.php?t=82835
This should be done on your test installation, not on a live forum.
Now you can go to the options page where the other mod options are and you'll have a link to "add" new options and new settings.
A "quick" overview on how to make a new product:
1) Put forum in debug mode
2) Go to "Add New Product" and give the Product a name and such
3) Go to Options and add options (choose the product you just created)
4) Go to Plugins and add plugins (to the product you created)
5) If necessary to to the MASTER TEMPLATE and add templates for the product you just created
6) When all done go back to the Product List and export the xml file.
In debug mode you can also edit the options of existing mods so you can see what other people have used/set.