It is. Use a global variable - say 'varLaunchpage' to pass a value to the page with the DP on.
From each launch page - the link that opens the page you want - set the variable to a value. Say 1, 2 or 3.
You can even be a bit smart here. On the page load for the page with the DP on, say:
Set the panel state of dynamic panel 'pnlMypanel' to value 'varLaunchpage' (having named the panel states 1,2 or 3)
dponload.rp (74.2 KB) for the file