How to use evaluated fields as threshold field in ITSI?

[Kendo213]

Is this possible? I have some searches I use for dashboards where I'm doing various evals. For example, I'm evaluating the storage free percent field, and then attempting to use that as the threshold field in ITSI. It doesn't seem to see the data, can't do a back fill, it's listed as N/A, etc.

[lukas_loder]

Try with the same search, but than use a timechart at the end of your search.
And in ITSI go and choose "last" value of your eval field. This way it worked for me to get the backfill working

[Kendo213]

timechart last(PercentUsed) doesn't seem to show a value, although chart last(PercentUsed) does. If I do that, and set the threshold field as last(PercentUsed) I'm still not populating any data.

Am I doing what you were recommending, just to clarify?

[lukas_loder]

do you get some data with for example | timechart span=15min avg(PercentUsed) ?
if so can you add this search to ITSI and then when you can select there on the next windows.. just choose there "last".