A method for displaying regions of a matrix. The matrix has at least one column and one or more rows having one or more fields related to individual data records. The method comprises: displaying a starting region of the matrix, the starting region having one or more rows with each row having a field corresponding a data record; determining a field corresponding to the matrix position which the computer user indicates via a first user interface; obtaining a data record to which the determined field is related; identifying the rows of the matrix relating to the obtained data record; displaying, on detection of a user request via a second user interface to continue to display, a second region of the matrix which contains at least one identified row.