# Routing in Reaper Shift+r to open routing window. You can also drag from the routing button and drop it on the aux track. To route multiple tracks, select them then shift+left-drag and drop on the aux track.[^1] [[Easy sidechaining in Reaper]] [[Sending to an aux before inserts]] [[Using the routing matrix]] [^1]: [REAPER Mixer Shortcuts - 14 tips to work faster in REAPER's mixer](https://www.youtube.com/watch?v=djfvU5aDpQE)