Add project to all groups

Hello,

I have groups like (G1) and (G2) and I want to add project to these (G1) and (G2).

first when I go to
node/add/casetracker-basic-project
I got error

You are not authorized to access this page.

And I must go under group to add project
g1/node/add/casetracker-basic-project
(g1 is path for G1 group)

my question is:

How can I add project to all my groups directly?

thanks