Display MoreI'm not totally sure I understand your question, but...
On the tracks in Reaper, you have two square buttons marked M and S. The M --- mutes the track.
You can create a separate track just for effects in Reaper (any DAW) and send it to the dry guitar track when using effects plugins.
To separate your guitar Stack and Effects on Kemper, you will have to set up the Kemper Output menu for Stack on one output (to your Interface input) and DLY+Verb on the other output.
So the effects from DAW must be on a separate track huh? I'll give it a try thanks!