The Helper dockable window allows you to navigate the file/RAM being viewed. The Hex Editor can navigate anywhere within a 4-gigabyte range, even if that implies viewing regions outside of the range of the file or RAM.

Navigation is composed of a From number and a Total number. The From value indicates the starting address from which the view is mapped. The Total value indicates the total number of addresses to map into the view. This system allows viewing large files or areas of RAM without creating a tiny scrollbar, which would result in very clunky scrolling.

When loading files, the view is mapped over the entire file by default. When loading a process, the view is mapped over 0x10000 bytes from 0x00400000 by default.