sy -

data syThe structure sy can also be addressed using syst. There is also a predefined data type sy, which can be used instead of the data type SYST of ABAP Dictionary.List level of the list that is currently being created (basic list: 0, details lists: greater than 0). For every interactive list event, sy-lsind is automatically increased by an increment of 1. sy-lsind can only be changed in ABAP programs for navating