Moving time signatures

i’ve got a project with some time signatures and tempo changes.
I would like to insert some regions at the beginning of the song, but i don’t find a way to move all the existing regions and times signatures to another place.

Did somebody already find the way to ?

thanks, that works, markers and regions are moved,
(not for the time signatures i have to move by hand)

first click at the master track header, than
go to the menu->track->insert time