previously i think the easy ones should appear after a longer time,
so did some manipulation, i remember is longer the interval.
now, some Qs got this:
the again 30m, hard 4d is ok,
but the good… i wish change from 1y to 6mo,
and the “easy” ofcause should come closer.
i understand i should tune myself.
how about if someone could help me return to the defaults so i can mess it up myself for trial and error?
because even today i type in the settings from ankings’ utube video,
it appears they will only take effect next time?