This is a very useful tool for doing just that as well as many other things. It’s call MIDI Polysher and is available for free at Plugin Boutique.
You insert it between Scaler and your synth. You can set a range of notes, change octaves, etc. Most people use it with Scaler and it is free. There are some other choices as well. I don’t know what DAW you use but most have built in MIDI tools that will do the same or similar. There are some tutorials here on forum from people that use it.