what is different trace and trace trace

Question

according to manual. 
 i know what is trace, and in there manual ...To force that channel's new value to go backward in the cue list, [Trace] [Trace] can be entered. but. it is not different with just trace in test..

Mike A · Answer

In the manual it says

When a channel that is inactive (at zero or null) in the cue list receives an active level, if update trace is used, that channel will not trace the current setting into previous cues. To force that channel's new value to go backward in the cue list, [Trace] [Trace] can be entered.

So I think its only going to behave differently if the channel was not set to something prior to this cue, I've not tried it but I guess it will push the value back to the very first cue in the list in that situation, so its probably only really helpful when running with multiple cue lists active.

Sammy · Answer

[Trace] [Trace] is tracking backwards 
 [Trace] is looking back or "tracing" back to the source of where a channel has received it change instruction, changing the value and then tracking that value forwards from that point in the cue list. 
 In some scenarios depending on where you are editing the value of a channel within the cue list and what it is doing around said cue you may find that [Trace] [Trace] looks to do be doing the same as [Trace]. For example if you were sat editing a channel in a cue that sat before a cue that changed the value of that same channel to something different then the tracking forwards part of trace would not be seen.

what is different trace and trace trace

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