Try this:
Show stocks where eMA(8) is near eMA(21)
and close is between 3 and 4
and Average Volume is above 200000
Substituting near for crossed above will get you results before it crosses but it will still give you results that already crossed. In stockfetcher, "near" means within 2%. So your results will be a mix of MA's approaching AND MA's that have already crossed. Just do a manual scan to eliminate the stocks that have already crossed.
Show stocks where eMA(8) is near eMA(21)
and close is between 3 and 4
and Average Volume is above 200000
Substituting near for crossed above will get you results before it crosses but it will still give you results that already crossed. In stockfetcher, "near" means within 2%. So your results will be a mix of MA's approaching AND MA's that have already crossed. Just do a manual scan to eliminate the stocks that have already crossed.










When a sentince starts off with "technically", I give up at that point 
