Would it be possible to have the 3 items in oculus that makes you ride an drake get added as mounts like we have Magic Broom?

https://www.wowhead.com/item=37860/ruby-essence
https://www.wowhead.com/item=37815/emerald-essence
https://www.wowhead.com/item=37859/amber-essence

I think those are really vehicles not mounts, so I'm not going to put them in.

You can do this yourself in the advanced options action list though if you want to:

Use [instance:578] 37860, 37815, 37859

See: https://github.com/xod-wow/LiteMount/wiki/Advanced-Options

Or you can put appropriate /use commands in your unavailable macro. See https://github.com/xod-wow/LiteMount/wiki/Unavailable-Macro

Happy adventuring, X.