The destination bus determines the type of panner available to a bus.

You cannot route from a bus only the LFE to another bus.

You can route a send or multiple sends from all of your tracks a single stream to be treated as the LFE as follows:

- Add a sub bus routed to the surround master. This bus will have a surround panner. Set this panner to LFE only.
- For any track that you want to contribute to the LFE content, set up its Bus send for the "LFE" bus. This can be pre or post.

Additionally, you can create "sub mixes" to the LFE bus by adding additional Sub buses routed to the LFE sub bus. This will permit you to have specific groups of tracks "send" to be sub mixes to the LFE mix.

Peter