My b2evolution Version: Not Entered

Hello.

I have been working on upgrading a site from b2 v1 to v2.4 and have just about everything worked out. However, I have never worked with b2 in the past and had a question about users:

There are 150+ users on this site, each with their own blog. When they login they can see all the blogs in the backoffice and a defaulted to 'All Blogs'. IS there anyway I can set it up so each user only sees the blog that they own in the backoffice?

Thanks in advance.