how to disable certain fields?

-- HikaShop version -- : 2.6.3
-- HikaMarket version -- : 1.7.0
-- Joomla version -- : 3.4.3
-- PHP version -- : 5.5
-- Error-message(debug-mod must be tuned on) -- : none

i would like to disable this on the front end temporarily. the settings on the back end is enough

quantity
code
brand
tags - what is the difference between keyword?
publish yes/no - can i disable unpublish for this?

also there is unpgrade for hikamarket. what will be affected? i have a lot of customization

thanks

thanks

but i cant find brand,where is it please?

also i created custom fields for the user and not for the vendor registration. the problem is every time i apply as a vendor an error occurs informing me to fill in the user fields. its not visible on the registration form but it is requested when i apply as vendor

thanks

thank you but i cant find brands here.