I've never created a style...

I've reviewed the material at psr tutorial, but would love to watch it being done, if possible. Are there any vids on you tube or elsewhere that cover this material?

Also, is there anything inherently different about creating a style in 7/4 than a more common time signature?

Finally, if I want the main section of the tune to be in 7/4, but the bridge to be in 4/4, is that best achieved by creating a registration for each style and toggling back and forth as desired?

Thanks guys...