10. A system for entering a string of symbols, the system comprising control circuitry configured to: generate for display a sequence of symbols arranged in a row, wherein the symbols are grouped in groupings; monitor user navigation between the groupings of symbols; determine a navigation pace based on the monitored user navigation, the navigation pace representing an interval of time taken by the user to navigate from a first grouping of symbols to a second grouping of symbols; receive a user input to navigate to a third grouping of symbols; and select symbols for the third grouping of symbols based on the determined navigation pace in response to receiving the user input.
10. A system for entering a string of symbols, the system comprising control circuitry configured to: generate for display a sequence of symbols arranged in a row, wherein the symbols are grouped in groupings; monitor user navigation between the groupings of symbols; determine a navigation pace based on the monitored user navigation, the navigation pace representing an interval of time taken by the user to navigate from a first grouping of symbols to a second grouping of symbols; receive a user input to navigate to a third grouping of symbols; and select symbols for the third grouping of symbols based on the determined navigation pace in response to receiving the user input. 17. The system of claim 10 , wherein the control circuitry is further configured to: generate for display the sequence of symbols on the first device; and receive the user input to navigate to the third grouping of symbols on the first device.