IsolateTimes is an option for Isolate and other functions using Isolate. If it is set to True, Isolate will be applied also to pure products.
By default, this expression does not become abbreviated
Isolate[a*b*c*d, a]a b c d
Now an abbreviation is introduced
Isolate[a*b*c*d, a, IsolateTimes -> True]a \;\text{KK}(19)