Assigning actions to already created menu in Unreal engine for VR (virtual reality) demo

WE are looking to solve a blueprint problem for us in Unreal engine. we want to change the colour/texture from a menu option in unreal , we have already the texture and also menu created. the job is to link this up. more details below Widget Menu Creation as seen in the given example. Assign the color option in the menu only to the Kitchen Cabinets Seen as red in the scene. Assign the material option only for the marble slab on the kitchen cabinets. With day and night option please animate the sun and the environment sphere texture change to night sky. -------------------------------------------- Menu will appear on left hand when the htc vive left hand motion controller trigger is pressed and will disappear when released. With the help of line trace from right hand motion controller and trigger button menu is intractable .(line trace only visible when Menu active) The directories for material and Colors are separately created in UE4 Content folder File with the color and textures for menu widget are attached in Photoshop File. ---------------------------------------------- Please provide Compile out the final application as win 64bit and the editable version.