[FEATURE] Trace Analytics - Collapse / Fold Spans

[tsteckenborn]

Is your feature request related to a problem?
I'm always frustrated when I can't easily find the section of spans I'm looking for.

What solution would you like?
I'd like to see a possibility to fold / collapse spans to quickly hide other contained spans.

What alternatives have you considered?
An improved ux through changed visualization of spans related to a selected span (contained in / contains).

Do you have any additional context?
I'm not sure if this is the proper channel for such feedback but the current ux seems to be a bit lackluster compared to some other solutions such as Baselime or even Dynatrace.

E.g.:

compared to e.g.

or

[dblock]

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