ThemeForest should be contacted directly for modifying their theme/options.
http://themeforest.net/item/ink-a-wordpress-blogging-theme-to-tell-stories/7520750/support
Commercial Products
If you use a commercial theme or plugin and need support, please go to their official support channel. In order to be good stewards of the WordPress community, and encourage innovation and progress, we feel it’s important to direct people to those official locations. Doing this will provide the developer with the income they need to make WordPress awesome.
Forum volunteers are also not given access to commercial products, so they would not know why your commercial theme or plugin is not working properly. This is one other reason why volunteers forward you to the commercial product’s vendors. The vendors are responsible for supporting their commercial product.
there is a forum available: http://themetrust.com/support-forums/
they cirtainly may help you there, when this question directly relates to ink! I bet they can help you and either update their theme or give you some customized code you may add to your theme in order to get your custom types running with the theme black box you need!
I am sorry for any misunderstanding. My question is not theme specific. I see that many themes have costum fields embedded in them. My question is how do i make these available in costum post types ass well. I thought there might be a universal way to do this.
