Install extension with Opencart extension installer: Install zip "YOUR-OC-RANGE-options-packs.ocmod.zip" with extension installer.
Refresh OCMod changes: Go to "Extensions > Modifications" and press blue refresh button.
Install module: Go to "Extensions > Extensions > Filter by 'Modules'" and install module.
RESET YOUR CACHES: If you are using Opencart 3.x clean your cache from dashboard, in blue icon placed in right/top. If you have some external cache system in your shop/server clean these!
Tab "Options Packs": You can find the options packs functionality inside product edit zone, in tab "Options Packs"
Update process
Extract main zip file "Options Packs V.X.X.X.zip"
Install extension with Opencart extension installer: Install zip "YOUR-OC-RANGE-options-packs.ocmod.zip" with extension installer.
Refresh OCMod changes: Go to "Extensions > Modifications" and press blue refresh button.
Go to "Extensions > Extensions > Filter by 'Modules'" access to "Options Packs" configuration zone and press SAVE BUTTON.