I apologize for the slow reply on this one. Our Forum is still new and for some reason we did not receive notification of this message.
A 500 MB option is an easy fix. I will add that into the next release.
A previous / next option also makes a lot of sense. I will look into adding this onto the context menu actions for the log file. As we are a bit late in the current release cycle, this feature may need to wait for the following release. I will take a look.
Thanks for the suggestions!