Assign some Capabilities to "EDITOR" in wordpress

Hi, I have created a website in wordpress using multiple plugins. Now, I need to assign the few capabilities to the EDITOR for the following plugins. PLEASE NOTE THAT I HAVE ALREADY TRIED Members or other user roles plugin but no success. Following are the plugins for which I need to assign add capability to EDITOR role. 1. Business Directory Plugin - [login to view URL] : In this plugin, I need to give access to EDITOR as well to add/edit listings in directory, categories and tags. 2. Another plugin - Image horizontal reel scroll slideshow / Vertical scroller plugin: the options for this plugin comes under settings menu. Same Issue, I need to give access to the EDITOR but no access for other settings menu. 3. In the THEME ENVISION, they are using a FLEX SLIDER PLUGIN. The options for adding the images in this flex slider is there in side menu for ADMIN. I want to add this option in EDITOR Dashboard as well. theme guys says they have no such functionality in theme. I need to assign roles for these plugins to EDITOR. This should be a task of couple of hours for those who understand wordpress thoroughly. Also, after completing the project, you need to tell me the file and the exact code you have added to assign ROLE.