A steel wire retainer for a sliding block comprises a plurality of steel wire retaining members, each of which includes a locking section on the sliding block and a plurality of steel wire retaining members. The source of the textual content may be an electronic document or written language text. The keypad comprises a plurality of combo keys. The system and method can also include an event management function for planning and evaluating sports-related events such as practices and games. Systems and methods of use are disclosed. Also provided are methods for synergistic insect control and crop protection.