two questions for the experts

[Linux for blind general discussion]

Hi Friends,

I have two questions. I hope some of you who are well versed with Linux 
and orca can help.

First, Is it possible to make a keyboard shortcut to switch between 
Screen reader profiles? I made a profile with the Arabic voice to read 
Arabic Material, and another profile for English. I had to do that 
because Voxin does not support automatic language switching, or at least 
not yet.

I know how to switch profiles by going to the orca settings, but it will 
be great if there is a shortcut to switch profiles on the fly.

My second question is: how can I change the speed rate of orca? The 
Arabic voice I use reads slowly for my liking. Is there a way of 
adjusting the speed? I looked at the sixty shortcuts of Orca but I saw 
nothing that may answer any of my two questions.

Cheers,

Ibrahim