Welcome to the Forum buddy !
Drum replacer uses ARA and replaces the original with a layered SFZ sample.
Im not sure in your case drum replacer is going to be the most productive method.
because you will need to drag a slate sample to DP in order to get the sample aligned.
your best bet might be to use Autosnap to grab the transient of the snare (for example),
then turn that Autosnap data in to a midi note. thus will trigger slate drums to play the note.
I did this for years before drum replacer and I still do it now in many cases such as yours
(when using samples that are not SFZ).