Sidebar for navigating repositories and recycle main window

I like the new version of SourceTree, but coming from Github Desktop, the thing I miss most is the ease of navigating between different repositories without having to open a new window for the repository browser and for each of the opened repositories.

Especially when working on several repo's at once, it can get really messy and I end up having 5-6 different SourceTree windows open with no easy way of telling which is which.

Can we get the option of having an embedded sidebar for navigating our repositories and when switching, have SourceTree recycle the same window for all repositories?