open your ../conf/_admin.php, and make allow cross posting 2(recommended, you can use 3 too):

$allow_cross_posting = 2;

/**
* Cross posting
*
* Possible values:
* - -1 if you don't want to use categories at all
* - 0 if you want users to post to a single category only
* - 1 if you want to be able to cross-post among multiple categories
* - 2 if you want to be able to cross-post among multiple blogs/categories
* - 3 if you want to be able to change main cat among blogs (which will move the
* posts from one blog to another; use with caution)

I've changed the permissions and am now able to post across blogs.

But if I try to take a post and move it into another blog, it gets lost and disappears.

Also, if I move an entire category into another blog, all the posts disappear until I move it back into the original blog.

Anyone know where I'm going wrong?

Hi theengel.

Welcome to the forums.
That reminded me. One of my categories grew so big I decided some time ago it needs a blog of it's own. I exported the category to the new blog with no problem at all.
1) set the variable $allow_crossposting to 3
2) I created a new blog in Dashboard -> Blog settings -> List
3) In Dashboard -> OLD BLOG (select it) -> Categories I hit the 'move' icon next to the category I wanted to move and chose the new blog as destination
4) It now took my to the Categories page of the new blog where I selected 'root' as parent (this ensures the category doesn't have parents.

That was it. It was cleanly moved from one blog to another.

Good luck

Well how come when I try it, all the posts disappear I wonder????

The category gets moved properly, but the posts are gone both in the backend and the front end.

Hello.

Just curious - Did you ever find out the reason?

Shortly, I'm about to try changing a post's main blog to another.

Thanks.

Backup the database first.
Even if something will go wrong you can easily fix IDs from phpMyAdmin.

Thanks sam2kb.

I tried it and it works. I like this feature.

Now, if I could only limit using '$allow_cross_posting = 3' to the Admin group and others to say, 1 or 2. :?:

http://forums.b2evolution.net/viewtopic.php?t=17540

Thanks.

In fact, crossposting should be a feature accessible from the backoffice since long ago, possibly with user scope.