Filtering for power level

I would like to filter all activities where I went above a certain power threshold (just for an instant or don any given period say more that 5s@700w). I haven’t seen a filter por max power or just even power. Can anybody help?
Thanks,
R

I am replying to myself. I went to the Intervals section and the graph does not show anything (nor can I enter a value for power).

It takes a bit for the data to load. You should be able to enter values for power and time.

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You can find these using a custom chart on the /fitness page. Not quite a filter but close:

Also the new activity compare page can search for intervals by intensity. Note that you need to tick the “Enable beta features” box in /settings. You need to have defined intervals for this to work. So it’s not quite what you are asking for but might solve your problem.