FEEGTRGQR5PETZZQLXVDMILD3Z3CMXP7IDR3DFVXBCGE7GMHB7GQC
NJ6ZL7PW32GVXUG2IVJCIRRKVBRHFOUACKS7MWXTZ2H464ZQTIHAC
BJ5X5O4ACBBJ56LRBBSTCW6IBQP4HAEOOOPNH3SKTA4F66YTOIDAC
OTIBCAUJ3KDQJLVDN3A536DLZGNRYMGJLORZVR3WLCGXGO6UGO6AC
enter cursor_pos == 0 -> insert empty line above current line
enter
cursor_pos == 0 -> insert empty line above current line
Lines[Cursor_line].data = string.sub(Lines[Cursor_line].data, 1, byte_offset)
Lines[Cursor_line].data = string.sub(Lines[Cursor_line].data, 1, byte_offset-1)