I want to combine the two highlighted rests in the picture into a dotted-eighth rest with a single command. Is it possible? I'm using Finale 2014d (Mac).
Go to the MIDI/Audio menu -> Quantization Settings... -> More Settings -> check "Minimize Number of Rests" and check "Allow Dotted Rests in Simple Meters"
Then highlight the measures you want to affect and run MIDI/Audio -> Retranscribe.