Not sure how this behavior is what's intended.
I customize the from time (the third line option, 0 days From 9:30AM) in chart XYZ. During the session this is remembered and I can simply press '0' and get that chart to display as wanted. If I call up the edit box again, it leaves my modified time setting alone .
Now , the next day , when this chart is reloaded, I would expect that custom time to be remembered and available to me without having to reenter it each and every day.
Reselecting custom time popup using '0', should not arbitrarily delete my entered values. It should simply enable editing them.
I explained why I need to use the manual 9:30 start , as the ES settings I'm using dont start the chart there using the built in options.
PS , I see now that even during the session, if I modify the timeframe options , ie selecting Last/Time (row 1 of the popup) it also deletes the custom time entered on row 3. I'd seriously rethink this design, as there is no benefit that I can see and causes extra work for the user, who chooses to vary the timeframe view.