Extend our Magento (v1.9.2.4) Category Attribute Manager

Dear Magento Developer, I would like you to write an extensive piece of code for an existing extension. We are using a Magento Category Attribute Manager which gives us the possibility to add custom attributes to our categories. Currently we have te posibility to use the following type of input fields: - Text field - Text area - Date - Yes/No - Multiple selection - Dropdown - Image We would like you to extend this functionality with some extra fields: - Select a static block (which contains all static block identifiers) - Select a product attribute (which contains all product attribute identifiers) These options have to be shown as a dropdown so the user can select one of the values provided. Basically what you have to do is to copy the dropdown functionality from the Extension and copy it to a new function. You have to fill out the dropdown values with a custom query. Please let me know if you have any further questions regarding this project.