Note: Not available on Element Classic.
Eos also supports an auto-block function. Auto-block can protect your cue data from unwanted changes. For example, in cue 5 you set channel 1 to 50%. It is stored as a move instruction. Then, you later go back to an earlier cue and set channel 1 to 50% and it tracks forward to cue 5. Channel 1 will be auto-blocked in cue 5. Even though it is now at the same value as the previous cue, the original concept of a move instruction is maintained.
Auto-blocks are displayed in white, with a white underscore.