WordPress.org

Can I change the redirection url?

Yes, you need to edit the plugin file and change the variable on line 21.

Can I change the required capability?

Yes. For more information see the codex for [http://codex.wordpress.org/RolesandCapabilities#Capabilities Roles and Capabilities]. Once you've chosen a capability, simply edit the plugin file at line 18 and replace "editothersposts" with your chosen capability.

I have another question...

If your question is not answered here, you can try contacting me. However, I don't actively support this plugin, so I'm not likely to make changes to meet your requirements, etc. http://www.callum-macdonald.com/contact/