Describe the issue

Enable users to create their custom java scriptlets by offering user-interface similar to My filters in uBO to build their own scriptlets namely My resources, that way they can build their scriptlets in no time without having to rely solely on resources.txt as it is not customisable to a user's needs.

Use-case

I came across a website where it was using a variable canRunAds which is not present in /resources.txt, so I cannot use the scriptlets available there and I have no way of inserting a new scriptlet in that file and retaining it as it would be erased with the extension update AND I have no way of creating a custom scriptlet by myself since there's no interface where I can create it. This is only one example as you can see numerous websites modify their own variables and use it, so a custom interface would be of great help where users can create their scriptlets in accordance to their needs without having to depend on Easylist or you or anyone else.