Step one: Go to File Menu "Preferences" click on "VST"
(bottom of screen)

Step two: On the right side of the window pull down the list
to the left of "Auto Monitoring" Choose "While Record Step Enabled" Click on "Apply" then "OK"

Step three: On an audio track click on the lower case cursive "e" to open VST Channel Settings. Find the 2 "Inserts" Small slots on the upper left that have the words " No Effect"
Click on "No Effect" and choose a Reverb e.g. "Reverb B"
Choose a Reverb setting e.g. "Vocal Plate"

Step four: Record Enable an Audio Track and listen for your reverb. Note: You can also use any other plug-in you desire.
E.G Guitar Rig, Amplitube, Etc...