Hi,
You need to configure your modules in order to be displayed on the Joomla menu you want to.
There is nothing to do in HikaMarket (or in HikaShop) for that ; it's fully related to Joomla and the module/menu system.
If you want more flexibility with your module configuration ; you can use the extension "advanced module manager".
Because, even if we added new filters in some HikaShop module ; these filters are only for HikaShop modules and just related with the HikaShop pages. So it couldn't work for external modules like your "simple file upload/list"
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.