During a recent install of the configuration above I attempted to use multiple SCMs to configure two GIT repos. However whenever I selected GIT from the Add SCM drop down the screen would not display the GIT options. It would however show them for CVS and subversion.

On another similar machine running Jenkins 1.534, Multiple SCMs plugin .2 (Same plugin), and GIT plugin 1.3.0 I am able to select and configure multiple GIT repos.

From what I can tell the GIT options changed between 1.3 and 2.0.1. There is now a credentials drop down which the Multiple SCM plugin might not support.