Module is designed to set related-to-option values for goods (eg. colour and size). Thus it gives a way to account goods on stock depending on option combinations. Option combinations also can have different prices.
The main difference with our standard related/dependent options mod - changed architecture (for faster work) and supporting unlimited combinations/relations of options/option values.

Fields "Parent option" and "Parent option value" by a certain product at the admin panel (tab "Options") are used to create related options.

By a store front the related option is shown only after choosing some parent option value. After that related-to-option values are available according to a chosen parent option value. For example, related-to-colour size.

Journal Theme compatible!

Demo (Journal theme): rdo2.opencart.pw

Admin: http://rdo2.opencart.pw/admin
login/password: demo/demo.

Video demo (Opencart 2/3): related_options_youtube

Supporting themes from the box:

Default
Journal2 / Journal3
Bolt Theme
Fastor
ShopME
SStore
Pavillion

Note:
We can't guarantee supporting of all the existing templates. And compability is not a reason for Refund. Adaptation to your theme (which is not in supporting list) - is a payable service!
Be careful if you have some other extensions that work with product options. Some conflicts may occur.
Support is offered for 12 months after purchase and does not include compatibility issues with other modules or developing in your order.

Attention:
If you use classic vQmod - it is not garantee that OCmod modification will take an affect.

If you need adaptation to your theme - just connect with us.
If you need that images automatically changes when dependent option is chosen - this mod will be useful:
Product image change for related options with price auto-update

SEE ALSO OUR OTHER EXTENSIONS:

Dependent / Related/Dependent options for OpenCart 3.x Ajax
Dependent / Related options for OpenCart 2.x
Dependent / Related options for OpenCart 1.5.x
Content generator (SEO Texts) - improve you semantic core