Creating a new branch of the tree?

I've got some branches of the tree that I have fleshed out but haven't yet connected to my own. Is there anyway to start a separate branch that i can tie to my tree later? Thanks one and all.

Start it by connecting a profile to your tree, maybe as your brother or something. Then disconnect that profile from the parents (edit relationships - remove parents). This will create a profile floating all by itself, which you can then build on. Just remember to copy down the URL or you may never find it again.. haha

Thanks so much, Jeff. You're such a tremendous help.